The Bosch X440 40 Grit Multi-Material Sanding Belts, measuring at 610mm x 100mm, come in a pack of three. These high-quality sanding belts are designed to handle a variety of materials, providing consistent performance and durability for all your sanding needs. The 40 grit roughness grade offers excellent material removal rate, making it ideal for heavy-duty applications. With Boschs commitment to quality and innovation, these sanding belts offer an efficient and reliable solution for both professionals and DIY enthusiasts.