Swivel Twin wheel medical chairs casters Item : 062S100TPR Wheel diameter :76mmx58,100x70mm,125mm Wheel materials : Nylon + TPR Fittings : Top plate swivel,screw thread,steel stem Wheel bearings ... 70 92x64 75x45 138 80 Widely use as twin wheel medical facility castor, hospital bed caster, nursing cart caster ,shelving caster,stretcher caster, healthcare bed casters.