12*1.75 inch pneumatic wheel

wheel Size:12*1.75 inch

1,Plastic rim long time use
2, hub longth 50mm
3,double ball bearing inner diameter 22mm 

rim:   5 spokes  plastic rim

Bearing: double bearing

we have have, 12*1.75, 12*2, 12*2.125, 14*1.75,14*2.125,16*1.75,16*2.125, 20*1.75,20*2.125 inch wheel