Color: Yellow; Material: ABS Plastic (Main Body), ABS Plastic (Keyboard Button); Size: 145 x 90 x 12mm/5.71 x 3.54 x 0.47 inch (Length*Width*Height); Display Size: 74.5 x 19 mm/2.93 x 0.74 inch (L*W); Digital display: 12 Digits; Power Source: AG10 Button Battery (Included); Advantage: It is small and lightweight, easy to carry or store in your pocket. Plastic buttons are comfortable to touch and smooth to operate. This handheld calculator contains button batteries for long life. Automatic intelligent sleep doesn't affect daily use, very power-saving. Soft rubber design on the back for stability and durability. The basic electronic calculator has a visual angle bracket on the back for easy reading of calculations and helps protect hand joints. Application: This large LCD display calculator has a variety of functions and can effectively perform the calculation work for everyone. Its simple and universal appearance is suitable for business, office, home, or basic calculation occasions. This cute small calculator can be used as a gift for people who like math or work in the office. Instruction: The calculator already contains a button battery, so you can use the calculator to perform calculations directly when you turn it on. NOTE: Please allow for slight color differences due to camera or lighting conditions. Please allow for slight size deviation due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.