Give them something personalized that they can use every day. Carabiners eliminate time wasted rummaging for keys in your pockets. Attach the imprinted key tag easily to your belt loop or lanyard and always have your keys within reach. Adding or removing keys from the carabiner is fast and easy; just push back the clip to open the carabiner’s clasp. 1 3/4″ x 6″ x 5/8″.