This jewel case style scale is a brilliant invention! It has a large stainless steel weighing platform and tray. Easy to read back lit LCD Screen Built in one gram test weight to check the scales for accuracy You can insert your own cd cover to personalise your scales! - Great for discretely storing your scales and you won't be short of a cd case to use as a flat surface! Weighing Units: grams (g), ounces (oz), troy ounces (ozrt), pennyweight (dwt) Capacity: 500g x 0.1g Power: Batteries Included