Bundle &ndash; 5 Items: 10-Year 24 ft. Round Pool Winter Cover with Cover Clips, Deluxe Pool Winterizing and Closing Chemical Kit, Winter Ball and 4 x 8 ft. Air Pillow Bundle of 5 items-24 ft. Round Winter Cover, Clips, Winterizing Kit, Winter Ball and Air Pillow Pool cover has a 4 foot overlap to allow an 18-inch water drop Deluxe winterizing kit contains necessary chemicals for closing pools up to 15,000 gallons Winter ball is an enzyme based stain preventer that treats up to 30,000 gallons 4x8 foot 16 gauge vinyl air pillow protects your pool and cover from potential ice damage