Lelinta 100 Pcs 1/2" Drum Sanding Bands Kit with 2 Sanding Drum Mandrels for Rotary Tools Outstanding value & quality - turn your Dremel or other rotary tool into versatile high-speed sander Perfect accessory to sand, shape, groove & finish soft & hard woods, fiberglass & more Mandrel Diameter: 3mm;Shank Length:(approx.) 25mm;Sleeve Width:(approx.) 13mm;Sleeve Diameter:12mm Package included:100 x Sandpaper Sleeves & 2 x Mandrels Item was usually taking 7-15days to US,much earlier than the estimated date.