The justly famous Rabbit Ear Rear Bag can be used with any front bag in this folder. The same size as the No. 1 Standard Rear Bag with the addition of another complete two-compartment bag sewn to its top. This compartment which forms the "ears" is 4 3/8" x 4 3/8" at its base. Each ear is 2 5/8" H and is filled separately. Note: Bags are not filled with sand when purchased and will need to be filled by customer. Made in U.S.A. 100%.