Convenient and simple to use: our soapstone holder features a pen shape for easy carrying and storage, the textured tightening collar ensures a secure grip when making markings, also easy to apply even with the use of gloves Wide range of applications: our soapstone pens can make clear markings in the field of welding, metal manufacturing, construction, machinery manufacturing, vehicle manufacturing, ship, steel, and many other place, durable and smooth to write, can be applied for a period of time Easy to replace: the soapstone refills are easy to be put into the holders, and the tightened end collar always hold the pen refill securely and safely, you can also use pliers to tighten it Quality material: soapstone is made of nature stone and the holders are made only with quality aluminum for good durability, reliable to apply for multiple times, you can replace the refills repeatedly so long as the holders are intact Note: Fragile products, please be careful when using. colour:Silver Material:Natural stone, aluminum Package Contents: 4 x Soapstone markers (with refill) 24 x Round soapstone pens refills Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.