Grex Genesis Essential Set Double Action Airbrushes are reliable, high-performance tools for budget-conscious artists who still want the great features and benefits of the Grex airbrush system. Precision machining and carefully selected materials ensure consistent performance. They feature stainless steel nozzles and needles, durable, heavy nickel chrome-plated housing, and replaceable, solvent-proof Teflon seals. - Grex Genesis Essential Set Double Action Airbrush - XSi3-ES, Side Feed, 0.3 mm0.3MM SID FEED 7ML C - The Genesis XSi3-ES includes a 0.3 mm needle and nozzle, and an interchangeable 7 ml (1/4 oz) side-mount reservoir that accommodates left- or right-handed users. The easy-to-clean, 360° adjustable reservoir lets you work in any position or angle, and it allows a straight line of sight to where you’re spraying. The general-purpose XSi3-ES offers a good balance between detail and coverage, and is ideal for small- to medium-size work.