Replacing damaged or dull snow blower paddles maintains optimal clearing performance & auger propulsion for your snow blower. RYOBI snow blower rubber paddle replacements are built with durability in mind, resisting wear and tear through normal snow clearing. These paddles are designed with a notch in them to let you know when it's time to replace. For added convenience, this kit includes all necessary installation hardware. The 21" Single-Stage Auger-Propelled Snow Blower Rubber Paddle and Hardware Kit is compatible with the RYOBI 40V 21” Single-Stage Auger-Propelled Snow Blower, RY40HPSN02, and includes (4) replacement paddles and assembly hardware.