Specifications: Rubber slurry is made of high-quality rubber. The thick rubber paddle measures 1.9 inches W x 4.9 inches L, with a minimum tensile strength of 725 PSI (5 MPa). Metal band is approximately 1.3 inches wide x 3.7 inches long. Bolts and Locking Nuts: Hex bolts are 5/16-18 x 1 inch coarse threaded with 5/16-18 locking nuts (install with 1/2 inch wrench and socket). Package includes 9 self-locking 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's impeller blades and the impeller chamber wall. The smaller the space, the higher the machine's operating efficiency and snow-throwing capacity, and the less likely it is for the machine to become clogged with snow. Note: Before ordering, please ensure the part number of your replacement unit matches your original unit. Color: As shown Material: Metal + Rubber Size: Thickness 3/8 inch Package Contents: 3 x Rubber paddles 3 x Metal straps 9 x Bolts and lock nuts 9 x Self-tapping screws Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement allows an error of +/- 1-3 cm.