Kit includes: 1- 3103 Mini Air Surface Prep Tool, 1- 2" Backer Pad, 1- 3" Backer Pad, 2- 2" Surface Prep Discs (Med), 2- 2" Surface Prep Disc (Coarse), 2- 3" Surface Prep Disc (Med), 2- 3" Surface Prep Disc (Coarse), 2- 2" Sanding Disc (80 Grit), 2- 3" Sanding Disc (80 Grit), and 1- Tool tray for storage. Pad Size: 3"/ 76.2 mm & 2"/ 50.80 mm Free Speed: 15,000 rpm Related Power: 0.20 hp Net Weight: 0.99 lbs / .45 kg Kit Weight: 2.7 lbs / 1.22 kg Overall Length: 5" Sound dBA (pressure / power): 84.9 / 95.9 Avg. Air Consumption: 2.07 cfm @ Load: 19.4 scfm Air Inlet: 1/4" Min. Hose Size: 3/8"