4 3/4" Diameter Wheel, 5/16" Shaft, CCW 4 3/4" Diameter Wheel, 5/16" Shaft, CW 4 3/4" Diameter Wheel, 5/16" Shaft 4 1/8" Diameter Wheel, 5/16" Shaft 4 1/8" Diameter Wheel, 5/16" Shaft 4 1/4" Diameter Wheel, 5/16" Double Flat Shaft, Clockwise 4 3/4" Diameter Wheel, 5/16" Shaft, CW