This is a top quality, ArmorTech brand piston and rings kit for the 1985-1987 Honda TRX 250 Fourtrax (this is the utility model with the rack in the front and back, not the sport model). ArmorTech piston kits are a high quality yet economically priced alternative to OEM. This kit comes complete with the piston, rings, wrist pin and circlips.  It comes in a variety of sizes, so be careful when selecting your size.  If you simply need replacement rings, we offer these as well in our other listings. Also, since you're rebuilding your top end, you'll need the gaskets, which we offer in our store. Keep in mind, if your cylinder needs machining, we offer complete machine work as well---check out our services in our store.