Syntace P6 Carbon HiFlex seat post MTB 31,6 mm black Claimed Weight: [27.2] 231 g, [30.9] 220 g, [31.6] 220 g, [34.9] 238 g Diameter: 27.2 mm, 30.9 mm, 31.6 mm, 34.9 mm Length: [27.2] 400 mm, [30.9] 300 mm, [30.9] 400 mm, [31.6] 300 mm, [31.6] 400 mm, [34.9] 480 mm Material: carbon fiber Recommended Use: road cycling, mountain biking