The GKN CV Boot Kit - 305846 is a replacement kit for a constant velocity (CV) boot, which is a protective rubber covering that surrounds the CV joint on a vehicle's driveshaft. The kit includes all necessary components to replace a damaged or worn CV boot, such as the boot itself, clamps, and grease. This kit is designed to fit a specific make and model of vehicle and is made by GKN, a reputable manufacturer of automotive parts. By replacing a damaged CV boot with this kit, it helps to protect the CV joint from dirt, debris, and moisture, which can lead to costly repairs if left unchecked.