Roxom 4 Inch Smooth Red Wobble Rollers 20mm Bore

4 Inch Smooth Red Wobble Rollers 20mm Bore Boat trailer rollers. 4 Inch Red Smooth wobble rollers with 20mm bore. Manufactured from tough polyurethane materials. These boat trailer wobble rollers are ideal for fibreglass boats and hulls. These polyurethane rollers will outlast and perform traditional rubber wobble rollers with the expected lifespan much greater. Dimensions : Bore size = 20mm. Diameter = 4 inch. Width = 3.5 inch.