The Grex Genesis.XSi is the side feed airbrush with a 3.0 mm nozzle. It features an ergonomic hand grip. Set includes:Genesis.XSi3 Airbrush, 7mL (1/4 fl. oz.) Side Cup w/ Lid, 15mL (1/2 fl. oz.) Side Cup w/ Lid, AD32 Side Siphon Adapter,30mL (1 fl. oz.) Siphon Bottle Assembly, Quick-Fit Standard Needle Cap, Quick-Fit Crown Needle Cap, Plastic Carrying Case, Nozzle Wrench.