Feature: 1. Good Material - It is made of solid High quality ABS housing, high sensitivity alloy probe, rubber protective cap, well heat-conducting plate. 2. Fast \u0026 Precise Measurement - A quick, accurate, safe way to distinguish diamond from the simulants, brings no harm to the diamond. 3. Easy Use - Turn on, wait for heating up ready, hold(finger on heat-conducting plate), position the probe at a 90-degree angle to the measured object. 4. Intuitive Design - Sound beep and LED lights straightforwardly indicates test result(beep \u0026 light: diamond, continuous buzzing sound: metal, no signs: simulants). 5. Portable Size \u0026 Leather Bag - compact, lightweight diamond tester, powered by 1 x 9V 006p battery (not included), comes with a leather case, for easy store, carry. Specification: Material: Plastic + Electronic Components Product Dimension: 160*40*23mm / 6.29*1.57*0.90in Product Weight: 60g / 2.11oz Package Size: 185*60*30mm / 7.28*2.36*1.18in Package Weight: 118g / 4.16oz. Package List: 1 * Diamond Tester 1 * Bag 1 * User Manual Note: Diamond tester set only, other accessories in the pictures are not included. Please read the user manual carefully for more information before usage. Due to lighting or other reasons, the picture and material object may slightly differ. Due to manual measurement, there may be deviation, please in kind prevail. Due to different production batches, the color of the product shell will have a little color difference.