Precise 100g X 0.01g Jewelery Digital Scale Diamond Gold Coin Calibration Weight Cell-phone Design Grams (g), Ounces (oz), Pennyweight (dwt), Troy Ounces (ozt), Carats (ct), Grains (gn). 100g X 0.01g Accuracy 100g calibration weight included! Stainless Steel weighing platform Operates with 2 CR2032 batteries (included!)