FMFXTR Aluminum Alloy Mountain Bike Extended Seat Post, Specification:, 31.8x530mm (Black), 33.9x550mm (Black)

1. The tube body is equipped with a safety line, with clear identification and easy installation.
2. About 3mm thick pipe wall, not easy to break
3. Aluminum alloy material, sturdy and durable
4. Material: 6061 aluminum alloy
5. Adaptation: generally suitable for folding bikes, mountain bikes
6. Specifications: about 31.8x530mm, 33.9x550mm