This 4 inch spool roller is made from the Highest Quality Black Rubber and is designed to assist you in loading your boat onto your trailer without scratching or causing damage to your boat.

- 5/8" Bore / hole size

- Aluminum core for better strength and rolling

- Will not rust or mar your boat

- Will not mark your boat

- Will not flatten out

- Extremely cut and abrasion resistant

- Makes launching a breeze

- Guaranteed to outlast any other roller on the market!

Length:4”

I.D. : 0.625”