Made of safe and durable ceramic material, this coral base is built to last. Made of ceramic material, square shape, durable and not easy to deform. Fine workmanship ensures practicality. It has a simple structure and is easy to install. Features - Color: As shown. - Material: Ceramic. - Size: 4.00X4.00X0.60cm/1.57X1.57X0.24in. - You will receive a Coral Base in sufficient daily quantities to meet your daily needs. - Safe ceramic materials and fine craftsmanship, do not affect water quality and coral status. - Ceramic material is safer and more suitable for coral growth, suitable for most coral fragments. - Multi-functional and versatile, not only suitable for coral bracket, but also can be placed in a separate aquarium, fish tank, etc. - The unique kiln temperature makes it have certain water, the temperature is more suitable for coral growth. Package list: 10 x coral breeding bases