The Jet Tools Sanding Sleeves come in a convenient 4-pack, each measuring 1" x 9" with a 150 grit rating, perfect for achieving a smooth finish on various materials. These sleeves are designed for use with sanding drums, making them ideal for woodworking and metalworking applications. The high-quality abrasive material ensures durability and effective sanding performance, while the consistent grit size provides uniform results. Whether you're refining edges or preparing surfaces for finishing, these sanding sleeves are an essential addition to your toolkit.