Features of 6"× 2" Pneumatic Caster Wheel The 6"× 2" pneumatic caster wheel is appropriate for low speed applications. It has quiet operation, is lightweight, it has simple instructions to follow and is easy to use. The 6"× 2" pneumatic caster wheel rolls smoothly over rough terrain. Specifications of 6"× 2" Pneumatic Caster Wheel Model PR1200 Tire Type Pneumatic Tire Size 6"× 2" Tire Tread Sawtooth Ply rating 2&4 Wheel Diameter 163mm Tread Width 50mm (2") Load Cap 30Kg (66lbs) Hub Length 36mm /Customized Bore Size 12.7mm (1/2")/ Customized