This is a brand new set of rear brake shoes made specifically for the Yamaha PW80 (also called the Y-Zinger 80) mini dirt bike. It fits pretty much every model year from 1983 all the way through 2010, which is awesome if you're restoring an older bike or just doing maintenance on a newer one. The part number is FL3878BS104HY from Caltric, a known brand for aftermarket motorcycle parts. These shoes are a direct replacement for the original equipment—when your old ones are worn down and braking feels weak or grabby, swapping these in will get your stopping power back. They come as a complete set for one wheel, new in the package. Caltric backs them with a 90-day warranty for peace of mind. Just a heads-up for California buyers: there's a Prop 65 warning that comes with the listing. Perfect for DIY mechanics or parents keeping their kid's mini bike safe and functional.