Specifications: Rubber slurry is made of highquality rubber, The size of the thick rubber paddle is 1.9inch W x 4.9inch L, with a minimum tensile strength of is 725 PSI (5 MPA). Metal band is approximately 1.3inch wide x 3.7inch long.Bolts and Locking Nuts: Hex bolts are 5/1618 x 1inch coarse threaded with 5/1618locking nuts (install with 1/2inch wrench and socket). Package also comes with 9 Selflocking screws, all screws are made of highquality metal materials.Function: This snow blower impeller conversion kit reduces the existing "space" between the snow blower's impeller blades and the impeller chamber wall. The smaller the space, the higher the machine's operating efficiency and snowthrowing capacity, and the less likely it is that the machine will become clogged with snow.Note:Before ordering, please make sure the part number of your new replacement unit matches your old unit.Colour:As ShownMaterial:Metal+RubberSize:Thickness 1/4 inchPackage Contents:3 * rubber paddles3 * metal straps9 * bolts and lock nuts9 * selftapping screwsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.