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Office Hippo 24-Hour High Back Office Chair (Black)

Ergonomic Office Chair

From: Office Hippo

This Office Hippo high back office chair delivers professional-grade comfort for extended work sessions. Built to BS5459 safety standards, it supports up to 152kg and carries certification for 24-hour daily use.

The asynchro mechanism allows independent adjustment of seat and backrest positions. You can tilt the seat forward for active working or recline the back whilst keeping the seat level. Height and width adjustable arms accommodate different body types and desk heights.

Thick moulded foam cushioning covers both seat and backrest for lasting comfort. The torsion control knob lets you match tilt tension to your body weight. Powder-coated metal construction ensures durability through heavy daily use.


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Product Features

Asynchro Mechanism - The advanced mechanism allows independent control of seat and backrest angles. You can raise or lower the back height whilst keeping the seat position fixed. The seat tilts forward for active working postures or backwards for relaxation. This flexibility helps maintain proper spinal alignment throughout long work sessions, reducing fatigue and back strain. 24-Hour Certification - This chair meets BS5459 safety standards for continuous daily use. The robust construction handles 152kg weight capacity without compromising stability. Heavy-duty components resist wear from constant adjustment and movement. Professional call centres and control rooms rely on this certification level for round-the-clock operations where chair failure isn't acceptable. Adjustable Arms - Both height and width adjustment accommodate different body sizes and desk configurations. Arms move up 10cm and adjust inward or outward by several centimetres. Proper arm support reduces shoulder tension and prevents wrist strain during typing. The rounded arm design provides comfortable forearm contact without pressure points during extended computer work.
Orthopaedic Design - Ergonomic shaping supports natural spine curvature and promotes healthy sitting posture. The backrest contours follow your spine's S-curve whilst the seat edge prevents leg circulation restriction. Forward tilt capability encourages active sitting which strengthens core muscles. This design helps prevent common office-related issues like lower back pain and hip stiffness. Torsion Control - The tension adjustment knob matches tilt resistance to your body weight for optimal support. Lighter users can reduce tension for easier reclining whilst heavier users increase resistance for better control. This personalisation prevents the chair from tilting too easily or requiring excessive force. Proper tension adjustment reduces muscle fatigue and maintains comfortable positioning. Heavy-Duty Construction - Powder-coated metal frame withstands intensive daily use without flexing or breaking. The 9.6kg weight reflects solid engineering rather than lightweight materials that compromise durability. Five-year component warranty covers mechanical parts whilst fabric carries two-year coverage. This construction quality justifies the investment for businesses requiring reliable seating solutions.

FAQs

What does the asynchro mechanism actually do?

The asynchro mechanism lets you adjust the seat and backrest independently. You can raise or lower the backrest height whilst keeping the seat position unchanged. The seat tilts forward for active working or backwards for relaxation, completely separate from the backrest angle. This gives you much more positioning flexibility than basic office chairs where the seat and back move together.

How much weight can this chair actually support?

The chair supports up to 152kg and carries BS5459 certification for this weight capacity. The heavy-duty metal frame and reinforced gas cylinder handle this load during normal use and adjustment. Customer reviews confirm the chair remains stable and functional even with users approaching the maximum weight limit during extended daily use.

Is this chair suitable for 24-hour use in shift work environments?

Yes, it carries specific certification for 24-hour daily use under BS5459 standards. This means the chair can handle continuous operation in call centres, control rooms, or other shift-based workplaces. The robust mechanism and heavy-duty components resist wear from constant adjustment and movement that would damage standard office chairs.

How do the adjustable arms work and what's the range?

The arms adjust both in height and width to fit different body sizes and desk setups. Height adjustment covers approximately 10cm range whilst width adjustment moves the arms inward or outward by several centimetres. This dual adjustment helps position your arms correctly whether you're typing, using a mouse, or resting during calls.

What's the difference between this and cheaper office chairs?

The main differences are the 24-hour certification, 152kg weight capacity and independent seat/back adjustment. Cheaper chairs typically support less weight, lack certification for extended use and have basic mechanisms where seat and back move together. The heavy-duty construction and five-year component warranty also distinguish it from budget alternatives.

How difficult is assembly and what tools are needed?

Assembly takes 30-45 minutes using the included instructions and basic tools. Some customers mention the chair is heavy, particularly the seat mechanism, so having someone help with lifting is useful. The weight reflects quality construction rather than poor design. All necessary hardware comes included and the process is straightforward following the step-by-step guide.

Does the forward tilt feature actually help with posture?

Forward tilt encourages active sitting which can strengthen core muscles and improve posture. When the seat tilts slightly forward, it naturally positions your pelvis correctly and reduces slouching. This feature is particularly useful for tasks requiring concentration or when you want to engage your core muscles rather than relying entirely on back support.

What's covered under the warranty and how long does it last?

The warranty covers mechanical components for five years and fabric for two years. This includes the gas cylinder, tilt mechanism, adjustment controls and frame. Normal wear items like wheels and surface scratches aren't covered, but mechanical failures during normal use are replaced. The extended warranty period reflects confidence in the construction quality.

Office Hippo 24-Hour High Back Office Chair (Black) Specs

BrandOffice Hippo
Model NumberOH0509BK
ColourBlack
MaterialMetal/Foam
Weight9.6 kg
Weight Capacity152 kg
Overall Dimensions71 x 64 x 95 cm
Seat Height Range43.5 to 52 cm
Seat Width48 cm
Seat Depth46 cm
Backrest Height54 cm
Backrest Width43 cm
Daily Use Rating24 hours
Safety StandardBS5459 (2000) part 2
Mechanism TypeAsynchro
Arm AdjustmentHeight and Width
Seat TiltYes
Back TiltYes
Torsion ControlYes
Finish TypePowder Coated
Base Type5-Star Wheeled
Surface RecommendationCarpet, Hard Floor
Assembly RequiredYes
Warranty Components5 years
Warranty Fabric2 years
Country of ManufactureTaiwan
GTIN05056073738086
Care InstructionsWipe Clean
Indoor/Outdoor UseIndoor
Age RangeAdult, Teen
Room TypeOffice