Product Description For measuring the oil level after servicing: the IFP Height Tool Bleeding Tool by RockShox The IFP Height Tool bleed tool from RockShox allows you to see exactly how much oil you need to replenish after servicing your RockShox Reverb seatpost. The tool has a scale up to 210 mm travel. Specifications:Function:measuring toolTool Type:bleed toolTravel:210 mmTechnical Information:Material:AluminiumCompatibility:Reverb dropper post (A1-B1)Reverb Stealth dropper post (A2-B1)Reverb AXS™ seatpostManufacturer Number:00.6818.043.000 Contents:1 x RockShox IFP Height Tool Manufacturer: SRAM LLC 1000 W. Fulton Market 4th Floor Chicago IL 60607 USA info@sram.com Distributor: SRAM Europe Sales and Services B.V. Paasbosweg 16 3862 ZS Nijkerk Netherlands info@sram.com