The Tru-Ball T.R.U. Ball Release Rope 3- Feet Features: Braided 30 times per inch and loaded with a solid core, this rope is the highest quality material you can buy. T.R.U. Ball strongly suggests that you use this rope made by BCY and Brownell for T.R.U. Ball if you want to use a rope loop with their standard caliper jaws! The Tru-Ball T.R.U. Ball Release Rope 3 Feet.