Made by the leading USA In Ground manufacturer with In Ground Vinyl. Pick your custom pattern design for your Kayak swimming pool. This pool liner is premium grade and it is made from quality vinyl for the swimming pool industry. Comes with Free Shipping. This product should be installed according to the instructions that are included with each purchase. If you would like to view our return policy and the Warranty in full detail, please see our Seller Information page by clicking on our seller name, Shop the Great Backyard, then click on “detailed seller information.”