This Hoop Top Marine Boat Trash Bag manufactured by Boat Trix. has a circular hoop opening with funnel entrance. It holds a lot of trash. Cans, Bottles, paper plates, etc Up to 5 gallons worth. The bag dimensions are 16" wide y 24" deep. it holds 50 empty non-crushed cans (12 oz). Simply the best for the price. Moreover, Boat Trix guarantees workmanship of components for 1 yr, simply pay shipping. To empty the bag, simply remove from the boat, turn upside down and tickle the cans and trash out! The bag is removable, but not necessary to empty the bag.