ToolKing.com is authorized to sell SawStop products only to customers residing in the state of Colorado. Colorado customers can pick up this product at our Lakewood retail showroom or have it shipped in-state via freightliner. If you are consider purchasing a SawStop, please call our Industrial Sales department at 1-800-696-TOOL ext. 202. SawStop price includes freight charges within the state of Colorado for all in-stock saws.The TSBC-10L is only intended for use with first-generation SawStop saws. To determine if this brake cartridge is right for you, please check the model number on your saw. SawStop saws whose model numbers start with "CB" can accept this brake cartridge.Tool King is unable to accept any returns on SawStop brake cartridges.The SawStop TSBC-10L is a Standard Replacement Brake Cartridge for first-generation SawStop saws (saws whose model number starts with CB). The cartridge consists of a spring, fuse wire and brake pawl. The TSBC-10L stops the blade, retracts the blade below the table surface in 1/200th (3-5 miliseconds) of a second, and shuts down the power for increased safety.