shopperspride MASS PRO Electronic Digital Vernier Caliper with Extra Large LCD Screen Paquimetro Micrometer With Box, 150mm (0 - 6 Inches) Metric or Imperial Dual Reading, Fine Adistment Roller, Hardened Stainless Steel, Four Measurement Functions, Inch/Fractions/Millimeter Conversion digtal calipr Digital Caliper Digital Caliper (150 mm) Caliper Digital Caliper  (150 mm)

The mini pocket size vernier micrometer is widely used for measuring of industrial accessories, handicraft, pearls and jewels. It can measure inside, outside, depth and step size with two sets of jaws and the probe. I believe that will be a good idea, if you could give your children a handmade necklace as birthday gift, which is made of pearls in oysters. The micrometer caliper will help you a lot, it is a good partner of pearl drill. Specifications: 1. Weight: 70g 2. Display: LCD Screen 3. Color: Silver+Black 4. Power: One Battery (included), LR44/AG13 1.5V 5. Measuring Range: 0-100 mm / 0-4 inch 6. Resolution: 0.1 mm / 0.01 inch, Packing Content: 1 x 1.5V Button Cell, 1 x Electronic Digital Caliper, 1 x Hard Storage Case