Features: The cable is 1.5m/4.9ft in length, there are 27.2mm/31.6mm two Specifications for choice. This aluminum alloy bike seat post is suitable for mountain bike, wonderful accessory for cycling lovers. Easy adjustment seat post, cyclists do not need to stop and use tools to adjust. The seat cushion angle can be changed according to its own requirements for better riding comfort. This product adopts the seal ring design to effectively protect the inside of the seat tube. Specifications: Material: Aluminum alloy Adjustable stroke: 0-100mm Adjustment: Wire control Specification: 27.2mm/31.6mm (optional) Length: 44cm/ 17.3in Net weight: 632g (27.2)/ 706g (31.6) Gross weight: 730g (27.2)/ 800g (31.6) Package List: 1 * seat post