This Mini Carabiner Folding Knife Keychain when folded is about 2“ long, and about 3.5” long when extended. This knife opens and folds easily and includes a locking mechanism to ensure safety when open and closed. This tool is small in size and big in utility. This is small enough to put on your key ring and store in your handbag, purse or pocket. It comes attached to a sturdy carabiner that can be securely clipped to a keychain, backpack, belt loop or pocket. As a gift to adults, kids, campers and hikers, this product is sure to impress. Weight 1.4 oz.