These castors are compatible with all of our chairs and work well on both carpeted and hardwood floors.

*5-Star aluminium base not included. 

The back rest is what makes the i29 an ergonomic chair. This is the full back assembly, with the split-back design, polished aluminium frame and Hood’s patented floating lumbar support. Use it to replace a damaged back, refresh a well-used chair or keep a spare for a busy office. Every part of the i29 can be removed and replaced, so a new back gives the chair a longer life and keeps it out of landfill. The back rest comes with all the bolts and fixings needed, so it’s ready to fit straight away.

The split back gives the upper and lower back separate support:

• Upper back: a 500 mm wide upper section, shaped for good thoracic support.
• Floating lumbar and pelvic support: the patented 440 mm lumbar section moves with you in dynamic mode. It supports the lower back all the time and keeps the pelvis correctly rotated.
• Height adjustment: release the two buttons on the back of the chair, move the back to suit the user’s height, and it locks in one of three positions.

The polished aluminium frame is strong and hard-wearing, with a premium finish to match the rest of the i29. Mesh gives good airflow and is easy to keep clean, which suits shared workspaces and 24/7 environments.

Key features:

• Complete back rest assembly for the Hood i29 ergonomic chair
• Supplied with all bolts and fixings, ready to fit
• Patented floating lumbar and pelvic support that moves with the user
• Split-back design with independent upper-back support
• Height adjustable, locking in three positions with two buttons
• Polished aluminium frame
• Upper back width 500 mm; lumbar width 440 mm
• Back height adjustment 570–620 mm; back angle 45°
• Tested to BS 5459-2:2000+A2:2008 for users up to 150 kg

Bring your Hood i29 back to full spec, or upgrade it, with this matched pair of 4D adjustable arm rests. They’re made to fit the i29 frame. They take the strain off shoulders and neck by supporting the forearms at the right height and angle for each user.

Every arm adjusts in four directions:

• Height: raises or lowers on a push-button ratchet to line up with the desk surface.
• Depth: the pad slides forward and back to support the forearm while typing.
• Width: the arms move in and out to suit different builds.
• Pivot: the pad rotates inward or outward to follow the natural angle of the arms.

The pads are contoured black polyurethane with a soft-touch matt finish. They’re comfortable all day and easy to wipe clean in busy offices. The uprights are black, robust and finished to match the i29’s mesh seat and back.

Key features:

• Supplied as a pair (left and right)
• Made for the Hood i29 ergonomic chair
• 4D adjustment: height, depth, width and pivot
• Push-button height adjustment
• Soft-touch black PU arm pads
• Fitting hardware included
• Ideal for replacements, upgrades and refurbishing fleet chairs

Keep your Hood C19, F94 or K22 chairs working at their best with this matched pair of 3D adjustable arm rests. One part fits all three models, so it’s a simple way to replace worn arms, upgrade older chairs or keep spares for a fleet across a whole office.

Every arm adjusts in three directions:

• Height: raises or lowers on a push-button ratchet so the arms line up with the desk.
• Depth: the pad slides forward and back to support the forearm while typing or reading.
• Pivot: the pad rotates inward or outward to follow the natural angle of the arms.

The contoured black pads are soft to the touch for all-day comfort and wipe clean easily, which suits busy, shared workspaces. The black uprights are sturdy and finished to match the C19, F94 and K22.

Key features:

• Supplied as a pair (left and right)
• Fits the Hood C19, F94 and K22 ergonomic chairs
• 3D adjustment: height, depth and pivot
• Push-button height adjustment
• Soft-touch black arm pads
• Fitting hardware included
• Ideal for replacements, upgrades and fleet maintenance

Replace your castors with our set of 5 chair glides for a stable, fixed-position base — ideal where rolling wheels are a hazard rather than a help. Compatible with all our ergonomic office chairs.

Glides are a simple, effective adaptation for users with limited mobility or balance difficulties, preventing the chair from rolling away during sitting or standing transfers.

Glides are also a practical choice for offshore and marine environments, where vessel motion can send castors rolling unpredictably — glides keep seating steady regardless of deck movement.

Why choose glides over castors:

• Prevents chair roll-away during sitting/standing transfers — a key consideration for users with limited mobility or balance issues
• Stays put on moving or sloped surfaces, making them ideal for ships and other vessels where deck motion affects castors
• Reduces fall and injury risk, supporting workplace accessibility accommodations
• Works on uneven or non-standard flooring, including deck grating and thresholds where castors can catch
• Fits all our ergonomic office and gaming chairs — simple like-for-like replacement
• Set of 5 — enough for a full castor swap on one chair

Replace your castors with our set of 5 chair glides for a stable, fixed-position base — ideal where rolling wheels are a hazard rather than a help. Compatible with all our ergonomic office chairs.

Glides are a simple, effective adaptation for users with limited mobility or balance difficulties, preventing the chair from rolling away during sitting or standing transfers.

Glides are also a practical choice for offshore and marine environments, where vessel motion can send castors rolling unpredictably — glides keep seating steady regardless of deck movement.

Why choose glides over castors:

• Prevents chair roll-away during sitting/standing transfers — a key consideration for users with limited mobility or balance issues
• Stays put on moving or sloped surfaces, making them ideal for ships and other vessels where deck motion affects castors
• Reduces fall and injury risk, supporting workplace accessibility accommodations
• Works on uneven or non-standard flooring, including deck grating and thresholds where castors can catch
• Fits all our ergonomic office and gaming chairs — simple like-for-like replacement
• Set of 5 — enough for a full castor swap on one chair

These castors benefit from brake-loaded technology, which reduces the risk of a chair rolling once someone has sat in it. The rubberised soles also help the chairs they are installed on from rolling.