High Quality: Letter opener slitter is made of high-quality plastic and features a concealed stainless steel razor blade, offering enhanced safety compared to traditional steel letter openers. Portable Size: Letter opener envelope slitter measures 3 x 1.8 x 0.1 inches. Its lightweight and compact design makes it easy to carry and convenient to store in a pocket or bag—ideal for everyday use and business travel. Keychain Hole Design: Includes 5 mail openers in 4 colors—black, white, red, and green—suitable for personal use or gifting. Each features a keychain hole for attachment to a keyring, enabling convenient use indoors or outdoors. Widely Used: These letter openers with razor blades allow quick and efficient opening of envelopes, mail, and packages. Suitable for home or office use by adults and teens. Safety Notice: This product is not intended for children under 3 years of age.