Never waste another second searching for the right key with the IdentiKey SlideLock Dual Carabiner. Combining an ultra-secure SlideLock carabiner with a long-lasting tag, this unique design is the best of both worlds. The dual aluminum carabiner allows you to clip keys on one side, hooking the other to a belt, purse, etc. for easy access. SlideLock mechanisms on each side lock the stainless steel doors, preventing keys from coming loose. In the center of the carabiner is a water-resistant plastic tab that allows keys to be labeled for easy identification. Choose any permanent marker for durability. we recommend fine-tip markers for accuracy.