Paasche Model H Airbrush is a popular airbrush recommended for beginners. It is single action, external mix, and siphon feed. Sturdy and flexible, the H airbrush is dependable and adaptable for practically any hobby use. This set has one airbrush with two additional size color adjusting parts so you can use many different color fluids. With the H1 components, use light fluids to achieve a spray pattern from 132 in. to 1 in. Use the H3 components with medium fluids for a spray pattern from 132 in. to 1 14 in. Use the H5 components with heavy fluids to achieve a spray pattern from 116 in. to 1 12 in. wide. Recommended air pressure from .5 to 1 CFM cubic feet per minute at 20 to 45 pounds pressure depending on tip size and fluid being sprayed. Clean, dry air is essential for best results. This set includes the following 1 Model H1L single action airbrush, 1 H 14 ounce metal color cup 7 cc, 1 H 1 ounce Color bottle assembly 29 cc, 1 H 3 ouncec