Suitable for feeding red worms, brine shrimp, bloodworms and red nematodes. It can be used in aquariums and aquariums, convenient to use. Easy to install, keep the food cleaner in the aquarium does not spill so easily. Length 6 cm (2.36 inches); Width (1.57in) High Quality: The acrylic feeding cup is made of high quality material, which is durable and long lasting. It can be used repeatedly and durable for long time use. The acrylic tumbler is made of high quality material, which is durable and long lasting. It can be used repeatedly and durable for long time use. V-shaped fish feeder, put fodder on the feeder and install it on an aquarium with suction cup.