Clear Acrylic Fish Tank size is 11 * 7.5cm. Small sizes but sturdy material was specially made to hand different LED lights on it without worrying it to fall right to the water Fish tank led light holder / aquarium light rack was made of quality acrylic clear plastic material. Which makes it perfect for any aquarium thanks to clear color will not take all of the attention to itself. They are sturdy, secure, and unobtrusive Just put Fish tank led light holder / light clamp for aquarium on the side of the aquarium and tighten the screws. They work great and raise your light to the perfect height Suitable for aquarium, fish tank at home of in office. Fish tank led light holder can support your LED lamp / aquarium light hanging kit on the aquarium This Fish tank led light holder used for supporting the LED light / hanging fish tank light in fish tank, keeping the light stable