The Jet Tools Sanding Sleeves, sized at 3/8" x 6", come in a 4-pack with a 100 grit rating, perfect for aggressive sanding and material removal. Made from high-quality abrasive materials, these sleeves are designed to withstand heavy use while providing excellent performance. They are compatible with various sanding tools, making them versatile for different applications, including woodworking and metalworking. The compact design allows for easy access to tight spaces, ensuring a smooth finish on your projects.