45mm Sponge Wheels White Hub - 1 3/4" (Pk2)

45mm Rounded Sponge Wheels with white hub in a pack of 2

The sponge is fairly hard / supportive rather than a soft spongey compound, ie designed for lightness and to be supportive rather than bounce.

15mm Thick,

Axle diameter 4.0mm

Weight - 3.3g (each)