Smart Weigh High Precision Digital Mini Pocket Scale with Backlit LCD Display, Personal Jewelry and Medicine Weight Measurements, Measure Gold, Gems, Diamonds, 100g x 0.01g, Black Instantly switch between 6 weighing modes. g, oz, ozt, dwt, ct, and gn Includes carrying case for convenience and protection during travel or storage Precise tare option and easy calibration. 100g calibration weights NOT included Sleek, lightweight platform design with easy-to-read LCD display and two touch buttons High precision sensors read with an advanced accuracy of 0.01g/0.001oz with a 100g capacity