Usage Tips:[DURABLE MATERIAL]: The sand blaster nozzles are made of hard and lightweight boron carbide, which makes the tip of the blast nozzle more durable and lasting, and has a longer serviceable life than ceramics, tungsten carbide and other materials! [ADVANTAGE OF BORON CARBIDE]: Our boron carbide sandblasting nozzle has many advantages, such as strong wear resistance, high hardness, high&low temperature resistance, high pressure resistance, etc. This will be a good choice for you. [AVAILABLE FOR MULTIPLE MEDIA]: Our high-quality boron carbide sandblasting nozzles are suitable for a variety of media, such as glass beads, silicon carbide, alumina, black diamond, garnet and other medias. So you don't have to worry that our products are not suitable for your tools, please rest assured select. size:35x20x6mm Material:boron carbide colour:Black Package Contents: 2 x Boron carbide nozzle Only the above package content, other products are not included. Note: Light shooting 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.