Premium MaterialMade of high-quality plastic, sturdy, thie mini calculator with built-in button cell is durable and has a long service life. Pocket SizeIdeal pocket size (101*64*9mm/3.97"*2.51"*0.35") for one-handed use, also light in weight (35g/ 0.07 lb), easy to carry and store. Dual Power SuppliedBoth solar and battery power are used by this 8 digit display calculator with silicone button (battery included). The solar panel will fully charge the calculator as long as you use it in a well-lit area. 4 Vibrant ColorsAvailable in red, green, royal blue, sky blue, meeting your different color favors, this mini pocket calculator is suitable for both boys and girls. Wide ApplicationWidely used for basics budgeting, business, the workplace, home, school and more. Use it for a fast calculation or to help with your own finances. Colour: red Product includes: 1pc Size: 6.4*10cm Notes: Please allow 1-3cm error, due to manual measurement, please make sure you don't mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual colour of the item. Thank you for your support