28pcs professional screwdriver set, Packing: plastic box. Material: carbon steel, Cr-V. 28pcs professional screwdriver set, Packing: plastic box. Material: carbon steel, Cr-V.Content: (-) 3.0x75,5.5x100,8.5x125,8.5x150mm (+)PH0x75,PH1x75,PH2x100mm 1pc bits holder 9pcs sockets 10pcs bits 1 pc holder 28pcs professional screwdrivers set