Features Easy to Install: Self‑expanding cushion is easy to install and designed to hug sleeves for a tight grip, keeping sanding paper in place for an extra fine finish. Standard Size: Standard size drums are common and compatible to use with rotary tools such as drill presses and hand power drills. Strong Storage Case: The drill sanding drum kit comes with strong storage case for quick access and protection. Lightweight and Durable: Quality construction built is long lasting, the drill sanding drum is lightweight and durable for sanding holes, contouring edges, and buffing out irregular shapes. Widely be Used: The drill sanding drum is ideal accessory for home improvement, hobbies, DIY, carpentry, wood working, and many more. Specifications: Quantity: 20pcs Weight: Approx. 910g4pcs Rubber Drum SizesDiameterHeightShank Diameter1/2inch64mm / 2.52inch3mm / 0.12inch3/4inch64mm / 2.52inch6mm / 0.24inch1inch64mm / 2.52inch6mm / 0.24inch1-1/2inch64mm / 2.52inch6mm / 0.24inch Package Included: 1pcs x 1/2" Rubber Drum 1pcs x 3/4" Rubber Drum 1pcs x 1" Rubber Drum 1pcs x 1.5" Rubber Drum 2sets (8pcs) x Coarse Sleeves (80grit) 2sets (8pcs) x Fine Sleeves (120grit) 1 x Case Note: Only rubber drums, sanding sleeves and case, no other stuff included. Package List