For sale 2 new Poly covers picture shows 1 set = 2.  1/2" thick 12" long 3" wide. Heavy duty U.H.M.W material for wear protection. If you have any questions, please ask thanks. UHMW is Corrosion Resistant & exhibits virtually no water absorption Non-Toxic Low Coefficient of Friction Abrasion, Impact Resistant 6 Time more Wear Resistant than Steel Non-Marking Lightweight Works from -155 F to + 200 F Doesn't Chip,Peal, Crack, or Rot.