Golden Mean Calipers - Large 12.6" (32cm), Measures From 3.2"-30" STAINLESS STEEL - Made from stainless steel with satin finish. DIMENSIONS -This caliper can measure from 3.2 inches to 30 inches. HAND-CRAFTED - Hand-crafted in New Zealand. This size caliper is great for Artists, designers, and sculptors. BUILT TO LAST - These calipers have a lifetime quality guarantee. UNIQUE CALIPERS - Teachers can demonstrate using this size caliper in their classrooms.