6.5-inch Flip Folding Solar Calculator Handwriting Tablet Painting Board,Single Writing Color - Blue •【Lightweight Eco-Friendly Material】Crafted from lightweight,eco-friendly materials,ensuring a portable and environmentally conscious design for everyday use •【Premium Acrylic Panel】Features a high-end acrylic surface that resists scratches,maintaining a pristine look even with frequent use •【Comfortable Square Key Design】Equipped with square calculator keys that provide a responsive touch and comfortable typing experience,making calculations effortless •【12-Digit Display】Supports up to 12 digits on the display,ensuring clarity and precision for all your calculations •【One-Key Clear LCD Writing Board】Includes an integrated writing pad with a one-key clear function,perfect for quick notes or calculations without wasting paper •【Anti-Erase Lock Button】With a lock button to prevent accidental clearing of your notes or calculations,ensuring your content stays secure until you're ready to delete it •Specifications: •Product material: ABS+Acrylic •Writing color: monochrome •Product size: 158*89*11mm •Writing board size: 133*70mm •Battery model: CR2035 button battery (included) Package included: •1 x Writing Board Calculator (with Battery) •1 x Pen