[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 , high hardness, high&low temperature , high pressure , 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, , 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:35x20x8mm Material:boron carbide colour:Black Package Contents: 1 x Boron carbide nozzle 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.