- When a puncture is simply too big to seal, the Muc-Off Puncture Plug Repair Kit is the ultimate backup tool that’s lightweight and easy-to-use. The tough and durable handle and 2-in-1 puncture plug/reamer tool comes with 5x thick plugs and 5x thin plugs packed all packed together in a handy storage pouch. Compatible with all tubeless road, MTB and gravel tyres. Refill packs with 10 repair plugs (5x thin and 5x thick) available separately.