"La Pinta" adjustable shader This machine is great for color packing and color blending. Handles any size group of needles from small to large. On this machine you can adjust to have a hard hit or a soft hit by just the turn of your finger. frame machined cnc from a solid block of 7075 aircraft aluminum 22mm diam Swiss Maxom Motor high quality delrin slide with an adjustable give effect system rca or clip cord connection engine positioned in the center of the frame 3.4 mm stroke with Hard to soft hit recommended voltage between 5 to 8.5 volts available in 3 different anodized finishes. Black / Red / Blue