Increased-Traction Conveyor Roller Cover Elastomer Straight Heat Shrink Roller Cover Type For Roller Diameter 1 29/32 to 2 in 50 ft Overall Length Shrink Ratio 2 1 2 1/16 in ID Before Shrinking - Conveyors Wall Thickness After Shrinking 0.07 in 1 in ID After Shrinking - Conveyors Color Black