Tie Down Dock System Back-Up Plate Tie Downs commercial-grade backup plate is designed to enhance the stability and strength of your docking system. It is specifically crafted for single T males and females, providing reliable reinforcement. These 5-inch by 5-inch plates offer robust reinforcement, adding strength and durability to your docking setup. Our backup plates promote a secure and stable docking experience by reinforcing the connection between single T males and females. They provide pe