Product description: Size: 4.5 * 6.7 * 7cm Color: transparent Material: Acrylic Package includes:1 piece of feeding cup Description: Protect live food:The live food funnel floats for worm blood collection and eliminates the eating disorder of small food in the aquarium for fish. It prevents food from floating around in the aquarium. Easy installation: Transparent design is better how much food is left and whether it is trapped or not. It is easy to attach the automatic fish feeder to the suction cups. It can be used in aquarium and fish tank, convenient to use. Keeps Aquarium: Cleaner Keeps Aquarium Cleaner food from spreading so easily. Suitable for feeding red worms, brine shrimp, blood worms and red nematodes. High Quality: Acrylic Feeder Cup is made of high quality material that is durable for use. It can be used repeatedly and durable for a long time.It gets the fish's attention. Your fish will find out after they get used to the feeder and will occasionally swim up to congregate there. It will be part of their attraction to these curious fish.