MADE IN USA The Pro-Design Ink Mixer by Joshua Bowers is an innovative solution for your custom ink blending needs. Simply insert a needle bar into the 360 brass needle bar adapter, connect the Pro-Design Ink Mixer to any power supply via RCA, and let the low-speed DC motor do the mixing for you. Its 6061 anodized aluminum body is lightweight, durable, and cleans easily. Each Pro-Design Ink Mixer includes (10) needle bars.