3M Hand Masker Pre Folded Contractor's Plastic is 3M's most flake resistant film for single coat paint applications. Use with 3M Hand Masker M3000 Dispenser for fast paint masking. Great for dust and fume containment. Saves time and money. 3M Hand Masker Pre Folded Contractor's Plastic is 3M's most flake resistant film for single coat paint applications. Use with 3M Hand Masker M3000 Dispenser for fast paint masking. Great for dust and fume containment. CP4 ideal for single doors, small/medium windows and furniture, CP6 ideal for countertops, cabinets, tubs, showers and large/bay windows, CP9 ideal for patio/double doors, walls, large/bay windows, and CP12 ideal for rooms with high ceilings, very large windows and masking off openings. Use indoors and outdoors. Saves time and money.