High quality latex exercise band pre-formed into a loop. You do not have to cut and tie it before performing exercises! Use the pre-made exercise loop to perform almost any upper or lower body exercise. Comes in three lengths to accommodate for different exercise requirements. Highly portable band can be taken anywhere. 7 Progressive levels of resistance to accommodate the lightest to the strongest needs. Lengths represent loop when it is flat. 15 Loop is equivalent to 30 of flat band cut and tied in a knot. Loops are 3 wide. Black X Heavy. Dimension: 15 D.