Loosen or Tighten Cylindrical or Rectangular Objects. Handy, self-tightening strap wrench won't slip. Works great for installing or removing timing belt sprockets or belt pulleys. Range from 1" to 6 5/8" round. Tensile strength of strap is 1350 P.S.I. Handle is made of glass-filled polypropylene which provid 28650.40- Strap *Belt is made of polyurethane *Handle is 12" long *Strap approx 10" long