[WHAT YOU GET] 1 x 5.5Inch wire looping mandrel(large), 1 x 5.5Inch wire looping mandrel(Small), 1 x extra 4Inch wire looping mandrel.[LARGE SIZE] Diameter:6mm0.236Inch 7mm0.275Inch 8mm0.315Inch 9mm0.354Inch 10mm0.394Inch. Made of stainless steel for your long lasting use. The PVC handles for anti-slip and comfort grip.[SMALL SIZE] Diameter:1.5mm0.059Inch 2mm0.079Inch 3mm0.118Inch 4mm0.157Inch 5mm0.197Inch. Made of stainless steel for your long lasting use. The PVC handles for anti-slip and comfort grip.[EXTRA MANDREL] Diameter:1.5mm0.059Inch 2mm0.079Inch 2.5mm0.098Inch 3mm0.118Inch 3.5mm0.138Inch. Made of stainless steel for your long lasting use. Clear marks for your convenient identification.[APPLICATION] Work fine on wire forming,wire loops,jump ring making. earring making andand other DIY jewelry crafts.With rounded and smooth not scratch the items.Color:RedMaterial:MetalPackage Contents:3 * ring mandrelOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +- 1-3cm.