: Letter opener slitting machine is made of plastic and embedded safety stainless steel blade, with a pointed mouth design, inserts the tip into the envelope, then slides the knife along the edge, cutting easily without damaging documents, safer than a knife. Wide range of uses: Safe and efficient letter opening tool,can be used for opening envelopes,express delivery, box openers, engineering paper-cuts, etc. Practical and durable, not easy to scratch, perfect for home or office use, women, men, and teens could use. Perfect size: Light weight, small size, safe to use, easy to fit in a pocket or bag, keychain hole design allows it to hang on your key ring, easy to use outdoors or indoors Package Includes: Includes 12 Pack open envelope dividers, black, white, red and green, 3 of each color, sufficient quantity for your everyday needs or as a gift for others. For your safety: Never put your fingers on the blade out of the reach of small children. Specification Material: Plastic and stainless steel Blade: Stainless steel blade Size: 3x1.8x0.1 inches Color: 4 different colors: black, white, red and green Packing includes: 12 pack letter openers, 4 colors, red, green, black and white, 3 packs for each color