Material:full carbon Fiber + Alloy cover

Diameter: φ27.2/φ30.8/φ31.6mm

Length: 350/400mm

Color: matte/gloss black

Weight: about 205g(±10g) 31.6x400mm 20 degree/197g(±10g) 30.8x400mm 0 degree

Fits Seat rail height：7x9mm（Comes with a pair of alloy rails 7x7mm for free）

Bike Type: Mountain/Road Bike

Package includes: seatpostx1 pcs, alloy rail x1 pair