Protect yourself against intruders at home and while traveling with the Guard Dog Security DoorKeeper. Slides under the doorknob on hinged doors, but coverts to be compatible with sliding doors too. Great for your apartment, hotel or cabin. Portable enough for hotel visits or dorm rooms. Rubberized base finds grip on carpet, tile or hardwood. A smart investment to improve any security situation. 20-gauge steel resists up to 300 lbs. of force Works with both hinged and sliding doors 40-position slide adjustment fits most doors Adjusts from 25 inch to 41.5 inch Rubberized base won't scratch floors Pivoting ball joint base
