Description:Body aluminum 6061 alloy

Sand blast anodized surface treatment

A spring coil and damper rubber inside

Absorb the shocks and you comfortable experience

Shock absorb travel 40mm/1

73in, seatpost total length 350mm/13

7in

The suspension seatpost fit for riders weight 50kg/ 110lbs to 100kg/ 220lbs

Bottom screw can adjust spring resilience

Clockwise the bottom screw if you are heavy, and anticlockwise it if you are lightweight

Good for city bike, lady bike, and daily leisure bikes

No clamp with the seatpost

Make sure you checked what diameter you need before buy

Specification:Size: Diameter: 25

4mm, weight: 429gDiameter: 27

2mm, weight: 478gDiameter: 28

6mm, weight: 515gDiameter: 30

9mm, weight: 516gDiameter: 31

6mm, weight: 538gPackage Includes:1 Piece Suspension Seatpost