The design, precision, and reliability of this scale makes it the perfect accessory for all types of hobbyists. Whether you enjoy coin collecting, metal detecting, scuba diving for shipwreck treasures, mining for gemstones, or collecting scrap gold, you will find this model to be a perfect tool for weighing precious metals, jewels, and other treasures. The large steel platform and durable, clear plastic expansion tray are the perfect size for weighing things like scrap jewelry, coins & coin rolls, crystals, gemstones & more! The Ounce mode is great for postal shipments. The Grain mode is commonly used for weighing archery arrows and gunpowder for reloading. The Carat mode is great to weigh loose, rough or cut, gemstones & other lapidary materials. This electronic pocket scale is perfect for virtually any small item you can think of, and has been used within the home as well as by professionals. The Tare button allows you to reset the scale to 0. The easily washable, clear plastic cover protects the scale's platform and doubles as an expansion tray when needed. The bright blue, high-contrast LCD display makes it very easy to read in any setting. This 1000g scale measures 3.75"(L)x 3.75"(W)x 0.81"(H) and is capable of measuring in grams, ounces, grains, and carats. 2 AAA batteries are included, as well as a lifetime warranty!