SeaSense Nylon Diver Down 3 Tier Flag, 20-Inch x 24-Inch U.S.C.G. regulation size: 20 x 24 Complete with 2 grommets and a removable 3-piece fiberglass stiffener Held into place in a sewn sleeve with a Velcro-sealed opening Removable carbon stiffener allows for minimum storage and display space