Rope Grab, Weight Capacity 310 lb., Rope Size 1/4 to 3/8 In., Rope Material Fibrous, Length 1-1/4 In. Dia., For Use With Bungee Cord/Rope, Material Impact Resistant, U.V. Stabilized Nylon Brummel Hooks and Rope Tie BallsProvide increased control and reduce grip fatigue when handling ropes. Standard hole suits 1/4 rope. Can be drilled out to accommodate 3/8 rope. Brummel hooks create a tight and secure bungee or rope connection without tying a knot. All rope balls have 1-1/4 O.D.