This is trolley system kit. It is made of nylon material, sturdy and durable to use. This set can prevent rubbing or scratching your boat while passing trolley rope from . Features - Color: Black. - Material: Nylon, stainless steel, rubber. - Size: 8.50X4.50X2.30cm/3.34X1.77X0.90 inch. - Unlike most other systems, your trolley line is removable from the ring, allowing you to use it as a dock rope for tying off your kayak or canoe onto a dock cleat. - Pulleys are flush-mounted instead of attached loosely with a pad eye and carabiner like other brands. This offers a seamless look and keeps tight to your vessel. - This kit uses a rope and pulley to help you shifts the position of your vessel without pulling up your anchor. - Can be installed on the left or right side, easily keep your position in wind or moving water. - The eyelet of this kayak anchor trolley kit is mainly used to fix the , tighten the rope, tie the rope and fix the rigging. Package list: 1 x rope 2 x elastic buckles 2 x pulleys 1 x x buckles 1 x stainless steel ring 6 x screws 6 x rubber nuts