Battery Power Mechanical Calculator:ABS material imitation mechanical keyboard calculator with retro round large button keys, comfortable to the touch. Retro Calculator Large 12-Digit LCD Display :Specially modulated pigment for the display screen which improves the clarity of the display screen clearly. Typewriter Calculator 10 Key Calculator Big Buttons:Computer keyboard works well type big keys easy to press with fingers. Aesthetic Calculator Large Calculator Good Size:Designed to sit flat on a desk, countertop, or table for convenient access. Basic Office Calculators for Desk: It perfects for office, business, school calculators for students, store, mall daily and office home used. 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.