• ✅ SIZE - Length: 13.8" (350 mm); Diameter: 25.4mm/27.2mm/28.6mm/30.4mm/30.8mm/31.6mm. The options 28.6 and 30.4 come with a 27.2 seatpost and a shim for size conversion
• ✅ MATERIAL - Shock absorber bike seatpost made of 6061 aluminum alloy, light weight and durable. Polished anodized finish, never rust
• ✅ CUSHIONING IMPACT - Built-in spring coils and damping rubber to absorb impact and reduce fatigue during long rides. Provides a better riding experience
• ✅ UNIVERSAL FIT - Suitable for most road bike, fixed gear bicycle, mountain bikes, downhill bike, etc. Ideal for rider with a wide range of body weights
• ✅ ATTENTION - Please measure the correct diameter required before buying. Saddle clamp is not included, only suitable for bicycle saddles with clamp