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.
Alloy Centre Style
4 1/2"(114mm) Width & 17mm Bore Size
Use with 16mm Spindle
Supports up too – 330kg each roller
Alumininum Centre on the Outer Casing of Softer Red Polyurethane
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