Warning-This product can expose you to Chloroprene, Carbon Black and Di-n-butyl Phthalate (DPB) which are known to the State of California to cause cancer and reproductive toxicity. For more information go to www.P65Warning.ca.gov Lightning-Boots High Quality Material and Patented Design combine to provide a more durable ATV & UTV CV boot. Please note that a Lightning-Boot installs like a traditional ATV or UTV CV boot and will not work with Fast-Tool Installation Tools. Lightning-Boot Kit Components: ATV & UTV CV LIGHTNING-BOOT 80 grams 3% Moly CV Joint Grease Short Clamp Long Clamp Clamp Installation Tool Detailed Instructions PATENTS ? USA 5311912, 5027665 & 6227748, European 0157559B1 & 0403163B1, Australian 634552, New Zealand 234026, South Africa 90/4590, and other Patents Pending.