Once you’ve changed the blade on any of these tools, box cutter blade disposal is made easier by the Slice finger-friendly grind. The Slice rounded-tip blades do not require a sharps box; the risk of injury is so low, you can put them with regular waste. With the pointed-tip blades, it’s up each individual company to decide if people must use a sharps box for disposal because the pointed tip could cause a puncture.There is the option of recycling. Slice blades are made from zirconium oxide, which is 100 percent recyclable. If you find that there are no advanced ceramic recycling facilities in your area, feel free to mail your used box cutter blades to us at our global headquarters in San Jose, California. We’ll recycle them for you.