The Multicatch Mouse Trap is a plastic trap designed to capture and hold up to 4 mice without harming them. A one-way flap entrance resets itself after being triggered, allowing more mice to enter and be caught. The tunnel design serves to attract mice to enter the trap easily. The label is removable to reveal a clear plastic lid which means you can see at a glance when something has been caught. The are plenty of ventilation points which reduces stress to the captured mice. Easy to bait and set. Each trap is provided with full instructions for use.