Walant DIY Coil Building Tool - Micro Coils Jig - 5 Resistance Optional The coil jig works for making coils to a certain size, five optional, 1.5, 2, 2.5, 3, 3.5 millimeter 13 mm in length for each section; works especially good when mounting coils in very tight spaces Super Easy to wrap your resistive wires by hands, a great coil winding Jig tool for many different purpose Stainless steel Material, high quality without any casting lines or burrs Package Includes: 1 x Coil Jig Tool