From the product description, check product page for current description, price and availability:

• 2*AAA batteries, 1 * 100g stainless steel calibration weight and 1 * Tweezers help you put the powder or small items on the scale, which will meet all your demands if you purchase this gram scale.
• ACCURATE AND SENSITIVE   High precision professional grade digital sensor system provides you with instant and accurate results from 0.05g to 100g using two decimal places. You will be able to confidently measure jewelry, food, medicines and more with this micro sized precision scale.
• 4 DIFFERENT MEASUREMENTS   The mini food scale includes all the necessary unit measurements for easy weight translations, convert measurement between in g / oz / ozt / dwt . Convenient for you to choose the proper unit by pressing the mode button.
• COMPACT DESIGN & BACK-LIT   Minimalistic and compact design (Product Dimensions: 3″ x 5″ x 3/4″) make it a portable pocket scale to take everywhere. Built with a clear blue back-lit LCD screen, enables you to read easily and clearly.
• PROTECTIVE COVER   The jewelry scale designed with a stainless steel platform and a protective flip cover. It is crafted to be strong, durable, and pocket-size for many of your portable weighing needs, such as food, tablets, powder, gemstones, coins, jewelry, gold, etc. What a useful pocket scale!