Back Filter the content Wheel diameter (mm) All 145 150 175 200 Load capacity (kg) All 70 Material wheel All Polyurethane Bearing All Ball bearing Hub bore (mm) All 8 Hub width (mm) All 35 50 56 60 1 - 4 from 4 Back Narrow wheels made of soft-polyurethane with ball bearing - used for walkers Narrow wheels made of soft-polyurethane with ball bearing - used for walkers Rollatoren-Räder aus Soft-Polyurethan mit Kugellager - PANNENSICHER Narrow wheels made of soft-polyurethane with ball bearing - used for walkers 1 - 4 from 4