Offering total control for fine detail spraying, Iwata's High Performance Plus Series airbrushes are designed around the legendary Iwata HP Series which established the Iwata name in the creative community over 50 years ago. Iwata High Performance HP-BC1 Plus has a 0.68 oz / 20 ml glass jar that is ideal when using a higher volume of spray medium. One of the benefits to siphon feed is the ability to use multiple bottles that can hold larger volumes of spray material, as compared to gravity-feed airbrushes. Quick color changes can be made using multiple bottles and pre-filling them with your favorite colors. (extra bottles come in a variety of sizes and types and are sold separately)