This is a set of 3 stainless steel Fine Bar Grounder background stamps. This set includes 3, 5 & 7-seed bar grounders. It is a great stamp set that produces great impressions. These bar grounders are ideal for Sheridan Style carving, but can be used for other styles as well. The tools measure 3/32", 5/32" and 7/32" in length. Marked on each tool is "Zhong Jiang" and its number, "S051-3", "S051-5" and "S051-7". This is a great stamp set that produces nice impressions.