AdirOffice hanging key tags are the perfect solution to organizing and quickly locating keys wherever multiple locks are involved or locking requirements change. Each durable plastic 1.5 in. x 1.5 in. key tag can be labeled by number or function using sharpie pens, permanent markers, or stick-on numbered or lettered labels. The sturdy metals key clip holds individual or multiple keys. Popular for rental offices, valet parking stands, rental lockers at gyms and spas, security lock boxes and as individual key tags for family members.