Comparison : Item # 12499, Rice Lake 1 Gram (g) ASTM Class 5 Individual Cylindrical Stainless Steel (SST) Weight
Item # 12499AC, Rice Lake 1 Gram (g) ASTM Class 5 Individual Cylindrical Stainless Steel (SST) Weight with Accredited Certificate
Item # 12501, Rice Lake 2 Gram (g) ASTM Class 5 Individual Cylindrical Stainless Steel (SST) Weight
Item # 12501AC, Rice Lake 2 Gram (g) ASTM Class 5 Individual Cylindrical Stainless Steel (SST) Weight with Accredited Certificate
Item # 12533, Rice Lake 3 Gram (g) ASTM Class 5 Individual Cylindrical Stainless Steel (SST) Weight