This aquarium breeding incubator is made of acrylic materials, it is durable and safe. Young or sick fish can be isolated, and it can effectively isolate tropical fish. Its simple design with exquisite detail makes it practical. Features - Color: Transparent. - Material: Acrylic. - Size: Approx. 11.50X10.00X10.00cm/4.52X3.93X3.93in. - The assembly method is simple and easy. Two openings on the left and right for reproduction. - The crystal clear box, you can watch the female fish giving birth without any barriers. - This product is made of acrylic material, durable and practical. - It can separate fish into different places, which can prevent the small fish or fry safe. - Suction cup design, easy to install, can be well fixed in the fish tank.