Tiny but MIGHTY! This little rubber door stop is easy to place under the door to help stop an intruder. Door stops help to brace a door for a few extra seconds...especially when seconds count. Small and easy to take with you wherever you travel. Great for dorm rooms, hotel rooms, apartments and homes. Throw it in your bag for the bathroom door when at a private home or party. It is safe for doors and floors. Just shut the door, place the Tiny but Mighty Door Stop under the door, push in with foot while pulling back on door slightly. It's locked in and ready to work. What's stopping you? Product design ships randomly.