Automatic locking (no key required for automatic locking on box cover) Anti-aging: TBS hardware is durable and can be employé pendant plus de 10 ansAutomatic lock: open and lock, safe and reliable to prevent pet children from eatingWaterproof and leakproof: the bait is not easy to be affected by damp and mildew, and has no pollution to the environmentHigh quality engineering plastics manufacturing, high strength, good toughness, easy to use