BikeYoke Revive 3.0 Dropper Seatpost - OEM Takeoff ***DROPPER POST ONLY***Key Features & Specs* Stack Height & Length: New saddle clamps lower the stack height by 5mm, and the 360deg rotatable foot unit cuts total insertion length by an additional 10mm.* Reset Bleed Valve: Quick-reset function allows you to bleed accumulated air and eliminate any vertical play in seconds using a 4mm Allen key or the included reset lever.