1" x 5" x .80" Dura-Ply collet strap. 3 ply nitrile, buna, and canvas for optimum consistancy and protection. This product a big step up from a standard leather collet,. They are easy to use and hold great tolerances. Use them on everything from shafts to finished cues. You can even cut 2 of them in half and glue the tip ends together to leave in your chuck for a quick and permanent soft jaw solution (Thanks Mike Gatzke for the awesome idea !)