Comparison : Item # 11854, Rice Lake 1 Gram (g) ASTM Class 1 Individual Screw Knob Stainless Steel (SST) Weight
Item # 11854AC, Rice Lake 1 Gram (g) ASTM Class 1 Individual Screw Knob Stainless Steel (SST) Weight with Accredited Certificate
Item # 11855, Rice Lake 2 Gram (g) ASTM Class 1 Individual Screw Knob Stainless Steel (SST) Weight
Item # 11855AC, Rice Lake 2 Gram (g) ASTM Class 1 Individual Screw Knob Stainless Steel (SST) Weight with Accredited Certificate
Item # 11856, Rice Lake 3 Gram (g) ASTM Class 1 Individual Screw Knob Stainless Steel (SST) Weight