For the actuation of a dropper seatpost. Most dropper post do not included a lever so Biketart stock a healthy selection of levers for all dropper posts.
A large amount of clamp options are made so you can easily fit a dropper lever onto your current brake lever without adding an extra 'band' to your handlebar. If needed, discreet band on clamps are also still available. Brands in stock are PNW, Wolftooth, OneUp, Fox and Crank Brothers with all fitting and colour options.