41/2" Keel Roller 17mm Bore - Alloy Centre

These Boat Trailer Keel Rollers have an aluminium outer casing that are designed to add additional protection and strength to the roller and keel of the boat when the trailer is being towed. FEATURES: Alloy Centre Style 4 1/2"(114mm) Width & 17mm Bore Size Use with 16mm Spindle Supports up to – 330kg each roller Aluminium Centre on the Outer Casing of Softer Red Polyurethane Non Marking UV Stable