This is a fish tank connector, good for home, aquarium and other places to use. Using safe material, practical and durable, not easy to deform and not easy to scale. With right angle designs, can have good inlet and outlet effect, it is a very useful fish tank accessories. Features -Color:Black. -Material:PVC. - Size: 7.00X7.00X4.00cm/2.75X2.75X1.57in - Using safe material, this connector is reliable and durable, withstand a . - One-piece molding, seamless butt joint, smooth inner wall without burrs, not easy to leak. - Widely applied for make-up water in fish tank, water inlet and outlet, water exchange, aquarium water supply, garden irrigation pipeline connection. - Anti-aging, light weight and proper size, you can use it with much more confidence. - Easy to install with the simple structure, very proper for almost all kinds of fish tanks. Package list: 10 tank connectors