are you talking about the drive shaft boot?......if so they can work as a temp. solution but they are quite tricky to fit, you need to be careful that you cut it to the exact size also to keep any greese well away from the join or it will not stick.......in short l would suggest you do the job properly in the first place
I concur with Montego....the quick boot is only a temporary fix. The correct way but also expensive way is to replace the boot by removing the hub and sliding the old boot off. But I have experience with quick boots on a Subaru, a Toyota, a BMW, and a Pontiac. They work fine if you just follow the instructions and keep the CV joint bearings very clean before you add the new grease. I actually had the quick boot on the Subaru last over 90,000 miles without a problem.