Kleine Wolke Elongated Lid Rug Cover with a Draw String Fit lids 17 to 18.5 in Long - Toilet Seat Covers - (W) 18.5in X (L) 19.7in (Azure Blue) Polyacrylic Imported Install elongated lid covers with a Draw String1.Pull the draw strings a bit before putting the lid cover on; 2.This should allow you to slip on the lid cover with the majority on top of the lid and the part with the draw strings and some extra material around the edges and underneath the lid; 3. Once in place, tighten the strings to fit the lid, tuck the excess strings underneath the lid cover (on top of the lid). It will work if your lid is a minimum of 17in and no longer than 18.5in (front to back). . Our toilet lid covers have enough material left to right (width) for any lid. Densely woven warm soft polyacrylic yarn witth an easy to use drawstring so it fits tightly. Machine wash in warm water, no harsh detergents and dry on normal tempurature in dryer.