Numbered Slotted Rack Key TagsWrite directly on tags with pencil, pen or permanent marker to keep track of which keys are which. For use with rack-style cabinets. Sturdy plastic tags with nickel-plated snap hooks hold one or more keys. Keep track of which keys are out. Size: 1 1/2 x 1 1/2; Color(s): White; Series: 1 to 20.