Save Money: Included in this bundle is a 270pc O-Ring assortment and an air conditioning valve core kit with a valve core removal kit | Easy Storage: Both the O-ring and valve core containers are thin boxes that can be packed up easily | Universal Fit: The valve core kit includes various sized valve cores that will fit many brands of cars | Multi-purpose: O-rings are great for many things such as plumbing, vehicle repair, or other mechanic work | Removal Tool: Each kit comes with a helpful valve core removal tool