Part# S12S40SU90LF12TX SPECS Fork Type: Stainless Swivel Wheel Diameter: 4" Wheel Tread Width: 1-1/4" Wheel Type: Solid Polyurethane  Wheel Durometer: Shore D 60 (+/-5) Bearing Type: None/Plain Bore Fastening Type: Threaded Stem Threaded Stem Size: 1/2-13x1-1/2 Temp Range: -20° to 180° F

Brake Type: Top Lock