Tie Down Dock System Piling Hoop Roller Assembly Tie Downs piling hoop roller assembly combines the piling hoop and dock roller assembly to provide superior protection for your dock. It effectively accommodates the constant up-and-down movement, ensuring smoother operation and minimizing the risk of damage to your dock structure. Designed for dock pilings up to 12 inches in diameter, our piling hoop roller assembly is built to handle challenging environmental conditions. It is ideal for areas wi