Features 1、Rugged and Durable: This bike seatpost controller is made of premium aluminum alloy, which is sturdy and durable for long term use without damage. 2、Anti Slip: There is an anti slip pattern on the dial button to ensure that it will not be used in time when sweating, and it is effectively anti slip. 3、Replacement Parts: This bike accessory can be used to replace old or damaged original parts, or as repair and maintain parts for longer life. 4、Installation Size: This seats tube wire controller is suitable for 22.2mm handlebars, it is easy to install and use, please confirm the handlebar size before use. 5、Easy to Use: This bike dropper seatpost controller is easy to use and convenient to operate, and you can adjust the seatpost height according to your needs. Item Type: Bike Seatpost Remote Wire Control Material: Aluminum Alloy Gross Weight: 49g / 1.7oz Product Size: Approx.95 x 54mm / 3.7 x 2.1in Handlebar Mounting Diameter: Approx.22.2mm / 0.9in Package List 1 x Seatpost Controller