Very good user friendly rebuild kit
"Really nice kit that enables consumers to rebuild their dropper without sending it away and being without it for weeks. Hardest part is releasing the collar without causing any damage, so used a thick cloth under some large mole grips. Other than that, no specialist tools required, good instructions online, and job was done by a novice inside 15 minutes. With quick delivery it meant I was only without the use of my post for a few days."