This tool is a must-have for both beading and wire art enthusiasts, as it enables the creation of precise and consistent loops, circles, and coils in wire. Constructed with carbon steel and a PVC grip, it features a smooth surface that prevents wire damage. The tool comes in a 2-piece set, each offering 5 different diameter options. The small mandrel has diameters of 1.5, 2, 3, 4, and 5mm, while the large mandrel has diameters of 6, 7, 8, 9, and 10mm. This versatile tool helps you to create beautiful jewelry pieces with ease.