Air can and damper service kits for Rockshox/Specialized Brain rear air shocks with IFP \n Includes upgraded nitrogen chamber plug (needle tool is required to fill the nitrogen chamber) \n Includes PTFE backup rings (201820 version also includes main damper shaft seal) \n Also includes Schrader valve core rated to 800 PSI, while the stock valve core is only rated to 350 psi \n Made in and imported from Ukraine