Everything needed for the Safe, Dust Free removal of paint or hazardous coatings and heavy duty surface prep. Complete Kit includes: 4 inch Roto-Peen w/DCOA, 4 inch C Flap Hub Assembly, 4 inch 60 grit 5/8-11 Flap Wheel, 4 inch 100 grit non-woven 5/8-11 wheel, 2 – 18 Volt Batteries and Tool box