Cosmos &reg; Pack of 5 Mini Retractable Utility Knife Box Cutter Letter Opener, Random Color Set of 5 mini knives. Portable and cute design. Size: about 7.5 cm x 2 cm Can be used for cutting envelope, food bags, plastic bag, wrapping tape, etc. Hanging hole design, can be attached to your keychain Ship in RANDOM colors. Colors of product may differ with the photos.