Specifications The rubber compound is made of high quality rubber. The size of the thick rubber paddle is 1.9 inches B4.9 inches L, with a minimum tensile strength of 725 PSI 5 MPA. The metal band is approximately 1.3 inches wide3.7 inches long.Bolts and locknuts Heboltar is 516181 inch coarse threaded with 51618 locking nuts assemble with 12 inch wrench and socket. The package also includes 9 selflocking screws, all screws are made of high quality metal materials.Function This snow blower impeller conversion kit reduces the existing space between the snow blower impeller blade and the impeller chamber wall. The smaller the space, the higher the machines operating efficiency and snow throwing capacity, and the less likely the machine will become clogged with snow.Note Before ordering, make sure the part number on your new replacement unit matches your old unit.Color As shownMaterial MetalRubberSize Thickness 38 inchesPackage contents3rubber paddles3metal band9bolts and lock nuts9selftapping screwsOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is13 cm.