"The Frabill Shrimp Shak with Aerator features a cling-on bait screen that allows shrimp to climb up and cling to interior walls, increasing the volume of bait that can be maintained. A durable insulated liner is removable. An accessory lid with molded slots holds bait net, aerator, etc. A large, self-standing bait door allows easy access. Includes a Frabill aerator that runs on 2 D-cell batteries (not included). 4-1/4-gal. capacity. 12-1/2""L x 12-1/2""W x 14-1/2""H. Cling-on bait screen Durable, removable, insulated liner Accessory lid Large, self-standing bait door Includes a Frabill model 14331 aerator"