Golden Mean Calipers - Small 4.7" (12cm) - Measures From 9 mm-220 mm STAINLESS STEEL - Made from stainless steel with satin finish. DIMENSIONS - This caliper can measure from 9 mm to 220 mm. HAND-CRAFTED - Hand-crafted in New Zealand. These calipers are most known for measuring eyebrow dimensions. BUILT TO LAST - These calipers have a lifetime quality guarantee. UNIQUE CALIPERS - Golden Mean Calipers are used by artists, surgeons, and beauticians.