Crank Brothers Highline 3 Dropper Seatpost. Features: Self-contained sealed hydraulic cartridge 47mm minimum stack height Internal routing with quick connect linear pull actuator Zero setback head, two-bolt fore/aft/tilt adjustment Weights between 400 (27.2x60mm) and 586g (34.9x170mm) Remote not included 2-year warranty Specs: Model:Highline 3 Travel Drop:100mm Diameter:27.2 Overall Length:370mm Insertion Length:220mm Weight:480g Color:black