Features1Shock-absorbing seat post: The internal shock absorption design effectively absorbs vibration and impact, enhancing riding comfort. 2Double bolt rear float design: The double screw lock makes installation simple and the seat cushion angle can be adjusted. 3Aluminum alloy material: Lightweight and high-strength, for long-term use. 4Adjustable design: The seat cushion angle and hardness can be adjusted to meet the needs of different riders. 5Sealed design: Effectively protects the inside of the seat post, waterproof and dustproof.SpecificationThis mountain bike hydraulic shock-absorbing seat post is made of lightweight and high-strength aluminum alloy. Its internal shock absorption design effectively absorbs vibration and impact, enhancing riding comfort. The double bolt rear float design and double screw lock make installation simple. The seat cushion angle and hardness can be adjusted to meet the needs of different riders.Features:Shock-absorbing seat post: The internal shock absorption design effectively absorbs vibration and impact, enhancing riding comfort.Double bolt rear float design: The double screw lock makes installation simple and the seat cushion angle can be adjusted.Aluminum alloy material: Lightweight and high-strength,for long-term use.Adjustable design: The seat cushion angle and hardness can be adjusted to meet the needs of different riders.Sealed design: Effectively protects the inside of the seat post, waterproof and dustproof.Specifications:Material: Aluminum alloyColor: SilverOriginal tube diameter: 27.2mm / 30.9mmTravel: Approximately 40mm / 50mmSize:Diameter 27.2mm x Length 350cmDiameter 30.9mm x Length 350cmWeight: Approximately 488g / 478gPackage list:1 x Diameter Shock-absorbing PostNote:The 30.9mm Shock-absorbing Post with Matching SleevePackage ListPackage list: 1 x Diameter Shock-absorbing Post