Review on 🚲 LEZYNE Dual Insert Bicycle Kit with Tubeless Tire Repair & Bar End Cap Multi-Tools Including 5 Tire Strips & Tool Insert Kit, Bike Bar Plugs by Zach Flores

Works great. I've used the multitool a few times now. Comes with three sizes of O-rings that stay in the tubes depending on handlebar diameter. I use the medium size, blue, and I have to slide it in and out carefully or the end o-ring could come out of the groove and loosen in the handlebar. If it comes loose inside, which will eventually happen, just remove the tool from the other side and blow it out or use something to get it out. A bit of silicon grease and some finesse/patience works best.