The perfect introduction into fish keeping.... - Gravel and plant included! - Great gift idea for Betta fanciers - Convenient feeding hole in the colorful lids, make feeding your Betta both easy and fun - Ideal for home or office - Feet on the bottom fit into lid grooves to create "stackable" units - Size: 5.5" x 5.5" x 5.5" holds 36oz with Gravel & 40oz without Gravel *lids come in an assorment of random colors.