Easy to use: Portable automatic retractable shrimp and crab traps are adopted, which is convenient and simple, installation-free and easy to operate. Advanced materials: double-layer nylon net and wire support durable steel for durable and lightweight crab net. Instructions: Open the trap and place the bait in the bait bag. Just wait for fish, shrimp, crabs and other aquatic creatures to swim before and after entering the cage so that the prey does not come out. Design: easy to take the prey out of the opening, not hard to get out of the hole