2in1 Drywall sander & dust-extractor Firstly invented in the world 1 Motor driven only 360-Rotation pad & Inside corner sand 2in1 Drywall sander & dust-extractor Feature2in1 Drywall sander + Dust-extractorPortable & light convinent for useEnviromental friendly with dust-absorption up to 98%Variety application: wall, metal, wood, plywood, marbles, ceiling, etcHigh efficient: Outer wall more than ...