uxcell 25-50mm 0.01mm Grad. Metric Outside Micrometer Mechanist Caliper Product Name : Metric Outside Micrometer;Material : Metal Color : Silver Tone, Gray;Range : 25-50mm Graduation : 0.01mm;Overall Size(Approx) : 163 x 64 x 18mm/ 6.4" x 2.5" x 0.7" (L*W*T) Holder Size : 182 x 82 x 30mm/ 7.2" x 3.2" x 1.2" (L*W*T);Net Weight : 373g Package Content : 1 x Metric Outside Micrometer,1 x Holder