Kness Tip-Trap. The simple live capture mousetrap. Place bait on the inside of the removable end cap. Place trap near a wall with door open. The smell of the bait will cascade from the unit, out the trap door and attract the mice. When mice enter the TIP-TRAP they will cause the unit to tip, closing the mouse inside. To release, simply pull back on closed trap door and let the mouse slide out.