Tarp Straps: 15" EPDM Rubber Straps w/Hooks. Our rubber tarp straps are constructed of high quality black EPDM rubber which is ozone resistant. These tarp straps do not rot or lose rebound qualities with continuous exposure to sun. Hooks will not bend or break under normal use. EPDM (Ethyleen Propyleen Dieen Monomeer) rubber is UV and Ozone resistant. These rubber tarps straps are super heavy duty tarp straps.