According to the snail’s habits to induce snails to the catcher, will not do harm to fish and plants. Reduce the impact of fish on the fish tank to maintain the ecological balance of the fish tank. Open the lid and push the fishing line into the stomata , with little holes, it is easy to release and sink to the bottom. Will not pollute the water quality, environmental protection and durability. Plastic snail trap catcher, according to the snail living habit design. Easy to install, easy to operate.