Dimensions: 15L x 15W x 13H in. PVC base in black. Clear acrylic dome and tunnel. Includes dome, base, tunnel, brackets, caps, tray. Ideal for small, freshwater fish. The Bio Bubble Pets Wonder Bubble Tunnel Kit - Black is an all in one aquatic bubble and tunnel unit that lets you enjoy semi-aquatic environments. This kit is a perfect balance between form and function. Its crystal clear acrylic tunnel allows fish to swim up and through. It uses positive water pressure to keep water in the tunnel while submerged. The Bulb in the middle of tunnel has a flat back for applying a mirror or images. Perfect as a table top aquarium and ideal for bettas and other small freshwater fish. This kid includes a Wonder Bubble dome, Wonder Bubble Base, Bubble Tunnel, Installation brackets, Silicone caps, and planting tray. About BioBubble PetsBased out of Boca Raton, Florida, BioBubble pets provides a unique and innovative spin on home habitats for your pets. Whether you require wet, dry, humid, arid, or environments anywhere in between, BioBubble has you covered. Modular in design, each of their products is able to be converted to accommodate nearly any small animal or plant, and they also offer a wide array of accessories. With the owner kept in mind as much as the pets, these products are user friendly and prove to be easily assembled, cleaned, and maintained for years of enjoyment. BioBubble Pets is on the cutting edge of home habitat design, so if you're looking for quality products guaranteed to fit your diverse and unique needs, look no further.