Bundle of Listo 1620 Marking Pencil/Grease Pencils/China Marking Pencils/Wax Pencils – White, Box of 12 With 72 Refills With Bonus Magnetic Memo Clip

I have used these pencils and “wax leads” in a Wholesale warehouse retail location, and had forgotten about them. I needed something to mark on glass that would be easy to remove, and came across these when looking through options. We used to use them on cardboard, and for paper they are permanent, but for glass!! Perfect. Non-porous surfaces these will mark on anything that is warm enough to transfer the wax. They will not work very well on very cold surfaces as the “Wax Lead” needs to have some warmth to actually transfer. Good value, and much easier to maintain than those “Grease” Pencils with the paper wrapped around them that the “Wax Leads” break so easily on. Give the little knob on the top of the pen a little twist, and zip, the “Wax Lead” just pushes out a little more. When you run out, just grab another lead and push it in, and start again. I forgot how useful these could be. Love em’