This is a set of 3 stainless steel Back Beveler stamps. These are great for rounding edges and the concave surface is particularly useful around borders. The tools measure 3/32", 1/8" and 3/16" in width. Marked on each tool is "Zhong Jiang" and its number, "B401-1", "B401-2" and "B401-3". This is a great stamp set that produces nice impressions.