1、Adjustment Design: The dropper post is an easily adjustment seatpost that the people can easily adjust without stopping to use tools. 2、Ease of use: The aluminum alloy dropper seatpost is easy to install without complicated procedures and easy to use. 3、Aluminum Alloy: Mountain bike dropper seatpost is made of aluminum alloy material, which is rustproof and durable. 4、Ideal Replacement: Dropper seatpost can be used to replace old broken parts and is an ideal replacement. 5、Scope of Application: Metal dropper post is suitable for internal bike racks, mountain bikes, a great accessory for cyclists. Item Type: Dropper Seatpost Material: Aluminum Alloy Applicable: Mountain Bike Stroke: 100mm within the 0-100mm Stroke, Free Lifting 1 x Dropper Seatpost 7 x Accessories 1 x User Manual