Seat post with aluminum suspension XLC SP-S05

'Suspension seatpost XLC Pro SP-S05 .travel: 50 mm (Ø 31,6 mm), 40 mm (Ø27,2 mm) .height: 92 mm (Ø 31,6 mm), 83 mm (Ø 27,2 mm) .suspension: spiral spring .clamp: 43x33 mm .optimal rider weight: 70-95kg .weight: approx. 409 g (Ø 31,6 x 300 mm)'