Back Filter the content Wheel diameter (mm) All 200 260 Load capacity (kg) All 75 100 Material wheel All Polyurethane Bearing All Roller bearing Overall height (mm) All 235 295 1 - 3 from 3 Back Swivel castors, wheels with puncture proof tyres, synthetic rim + roller bearing Swivel castors, total brake,wheels puncture proof tyres (Ø200mm rear brake) Fixed castors with wheels with puncture proof tyres, synthetic rim + roller bear 1 - 3 from 3