Features1Easy Installation: The seatpost shim is easy to install and disassemble, providing convenience for seatpost switching whenever required, no complicated tools required, saving your time and effort. 2 Material: Manufactured from high strength aluminum alloy with CNC machining, the seatpost reducing sleeve shim is lightweight, rusting resistant, erosion resistant for long term use. 3Versatile Use: The seat post tube adapter is suitable for various cycling scenarios, suitable for mountain cycle and road cycle, enhancing the functionality and performance of your cycle. 4Enhanced Performance: The seat post adapter shim reduces wear and tear on the seatpost, greatly extending the life of the post and ensuring a smoother ride over different terrains. 5Stylish Look: In addition to enhancing the overall performance, the seatpost reducer shim adds a stylish touch and improves the overall appearance of the cycle.SpecificationItem Type: Seat Post Tube AdapterMaterial: Aluminum AlloyPackage List2 x Seat Post Reducer Shim