Product Ring Sizer: Metal ring tool measure tool with US sizes of 0-13Long Service Time: Made of Zinc alloy, 27pcs stainless steel ring sizer setDurable and does not rust: Perfect for fitting wedding rings, class rings and other wide ringsMeasure Size Easily: Ring sizer or finger gauge made of alloy metal, fine workmanship with round outside and flat inside, smooth edges do not hurt your handscolour:silver + black and whitematerial:zinc alloyPackage Contents:1 x 0-13 Ring Gauges Finger ruler1 x Annular Mandrel AluminumlOnly the above package content, other products are not included.Note: Light shooting 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.