88A durometer rough/matte/textured green polyurethane twisted belt. This belt replaces a 3/16" O-ring. Twisted belts are typically 6% shorter than the O-ring belt they replace. Final stretch should be around 16-19%. Measure these belts linearly end to end excluding the hook. Beware that used belts may have stretched out considerably.

If you use stainless steel hooks with these belts, the hooks should be crimped onto the belt loops to prevent them from rubbing their way through the polyurethane. We crimp the hook onto one loop, so use a vice-grip wrench to gently crimp the other side of the hook after installing, but do not crush the stainless steel hook.