You get what you pay for when it comes parts like this. Generally, the better quality seals are more expensive, but they fit/work better and last longer. If I were you, I'd look around on online ATV parts houses, and buy a name-brand seal kit. OEM Yamaha seals are always a safe bet, but companies like Cometic and Vesrah also make good products. I bought and installed a Moose Racing seal kit for my '02 Blaster, and it's worked out just fine....