Each kit includes instructions, material for rink edges, and membrane for ice rink. Rink sizes are fully customizable to your space. When selecting your kit, the sizes listed are of the actual membrane liner and the actual rink will average two feet less on each side of your liner. The item "Dads Rink Kit 20' X 40 DIY Backyard Ice Rink Kit ON SALE" is in sale since Tuesday, November 24, 2020.This item is in the category "Sporting Goods\Winter Sports\Ice Skating\Other Ice Skating". The seller is "oilcity99" and is located in EDMONTON. This item can be shipped to Canada, United States.