The customer comes first! If you have any dissatisfaction with the product, we support full refund within 30 days! Calculator Writing Tablet Doodle Pad Calculators with Lock Button & E-Pen 12 Digit Display Hand-held for Students & Kids Feature: Product Name: Calculator Material: Rubber & Plastic Product color: Black Product size:15.9x9.2x1.1cm/6.26x3.62x0.43in Packing size: 17.2x10.3x1.7cm/6.77x4.06x0.67in Net weight：0.118kg/0.26lbs Gross weight: 0.148kg/0.326lbs Description: Two functions in one: this is a new calculator, a calculator with a writing board, which is convenient for recording. Pre-cise Calculation: Our basic office calculator has an independent calculation chip, which can quickly process multi-digit calculations and calculate accurately. Which improves the efficiency of work and study. Large screen display: 12 Digits, better vision, up-right LCD display. LCD writing: Inkless Drawing/Memo Pads or Paperless Noting/Planning Boards. It can better serve your office and study. for home and office use:Performs common math as well as various financial functions, for both adults and students. Package Included: 1× lculator 1× Manual Viflosae Calculator Writing Tablet Doodle Pad Calculators With Lock Button & E-Pen 12 Digit Display Hand-held For Students & Kids Electronics Gadgets Up to 40% Off Two functions in one: this is a new calculator, a calculator with a writing board, which is convenient for recording. Pre-cise Calculation: Our basic office calculator has an independent calculation chip, which can quickly process multi-digit calculations and calculate accurately. Which improves the efficiency of work and study. Large screen display: 12 Digits, better vision, up-right LCD display. LCD writing: Inkless Drawing/Memo Pads or Paperless Noting/Planning Boards. It can better serve your office and study.