Estone 7 Piece Fillet Weld Set Gage Gauge Welding Inspection Test Ulnar MM & inch MG11 Gauge is made of stainless steel, use for: checking fillet leg size, checking fillet throat size It is miniature and light weight, and can be easily carried in your pocket Permits accurate measuring of the most popular weld fillet sizes in imperial:1/8"-1" and metric All sizes and numerals are etched into the surface for clarity and easier reading. Each package with a cell phone chain Which has "Estone" LOGO