Clip-On Deck Extension For Short Box Sled Decks (SB-Deck-Extension)Features Provides essential support for long track sleds on short box decks Features a simple clip on design for easy installation after your sled is loaded Finished in a durable texture black powdercoat Minor assembly is required before first use Important Note: The user must have the strength to lift the back end of the snowmobile onto the extension Our clip on extension helps support long track sleds on our short box decks. To use the extension,