Carborundum, also known as silicon carbide, is a hard, synthetic material primarily used as an abrasive and in printmaking. It's known for its grit, which can be used to create textures and effects on printing plates for intaglio and relief printing

Carborundum is commonly used to alleviates headaches, and eye strain, especially related to computer use. Positioned in front of a computer or VDU screen it can help to block any harmful electromagnetic radiation. Helps block electromagnetic radiation. Relieves stress caused by electronic equipment.