Supreme Plus Oval Swimming Pool Winter Cover Green/Black-With Cover Clips (18 Ft. x 33 Ft. Oval) This super tough cover has a 4-foot overhang 12 x 12 scrim per square inch. Double grommets every 3 feet. Double Stitched & thick hems using UV resisted nylon threads. Reversible Green/Black color. Ultraviolet light inhibitor to protect against the suns damaging rays. Pool Size: 18' x 33/34' Oval; Cover Size: 22' x 38'; Comes with 48 Cover Clips.