The newest Dynaplug repair tool for tubeless bicycle tires…the Dynaplug Racer. Why do you need this? Dynaplug RACER is the quickest tire puncture repair tool for bicycle tire punctures and especially when terrain induces larger holes. MEGAPLUG is great for massive holes that sealant won’t stand a chance against. Beneath one cap you’ll find the MEGAPLUG. It’s a real time saver when you have a large puncture. Have a smaller puncture? Pull off the other cap and the standard plug is ready to go, ideal for treads, sidewalls and pinch flats. The RACER is made of 6061 Aluminum billet. Limited Lifetime Warranty