You will receive 2pc thin flat soapstone holder with soapstone chalk, extra 20 pcs thin flat soapstone refills 1/16". Flat soapstone holders are made of aluminum by high-quality CNC process, durable and comfortable to hold. Push thumb slider allows for easy movementand refilling. The thin flat soapstone is made of #1 grade natural soapstone, resistant to high temperatures, waterproof, will not burn off during welding ,the mark white clear and is easy to remove. The soapstone refills are easy to replace,and you just need to press the brass button with your thumb to adjust the length of these welding marking tools. This Soapstone Pencil Kit are excellent for your marking needs. Make perfect markings for welding, metal fabrication, construction and Textile. Using our Soapstone Holder prevents soapstone breakage and ensures accurate marks. Soapstone refills are made of natural stone,durable and smooth to write. The soapstone marking pencil mark white clear and removable Markings. Our soapstone is perfect for any slate, tiles, metal, asphalt and many more surfaces,also works on chalkboard.