Hi-Rise Static Draughting KitA hi rise fixed foot ring accessory to enable adaptation of chairs to be used in factories and laboratory environments. Base fitted with glides to maintain stability we advise never to use a draughting kit with a chair that tilts, or has castors fitted. Fixed draughting kit a foot ring and set of glides We recommend fitting glides to replace castors if the draughting kit is to be used To be used on fixed back chairs Supplied with all fixings needed