The snail trap is made of high quality transparent plastic, which is easy to clean and does not pollute water. With vent hole, easy to release air and sink to the bottom. bottom. The aquarium snail catcher is used to catch snails naturally and avoid harmful drugs to your fish and plants. Open the cover and push the line of fishing in the base of the stomata. Special design that snails can r ande inside the center only. Catches snails and will not harm fish and plants.