High quality material: Glass feeder cup is made of high quality material, which is durable and lasting for use. It can be used repeatedly and durable for long time use. Protect live food: Live food funnel floating for worm blood feeder and solve eating trouble of small food in the tank for fish. Prevent live food spread to go to throughout in aquarium tank. Easy to install: Transparent design is better to know how much food left and whether it traps or not. It is easy to install the fish feeder by the suction cups. The suction cup can be sucked more firmly if it is wetted before use .It can be used in fishtank and aquarium, convenient to use. Keeps aquarium cleaner: Keeps aquarium cleaner food doesn't spread around so easily. Suitable for feeding: red worms, brine shrimp, blood worm and red nematode. Attract fishs attention: Your fish will figure it out after they are used to the feeder, and will occasionally swim up to assemble there. It will be a part of their attraction of these curious fishes. Sweet Tips: Please allow a little size error due to hand measure. Color may be a little different due to monitor and light brightness from pictures. Thank you for your understands. Package Includes: 1 x Red Worm Feeder Red Worm Feeder Product Specification: Product name: Red Worm Feeder Material: Glass Color: Clear Size: 40 x 41mm/1.57" x 1.61" glass fish feeder Easy to install: 1. Choose a location, wipe it clean, and suck it on the tank wall. 2.Mount the white suction cup parts on the suction cup.