Features: Features a clear 8-digit digital display keychain for easy reading of calculation results, ideal for everyday small-scale computing needs. Its unique cover design not only protects the calculator screen from scratches but also allows for instantly opening during use, ensuring simple and quick operations. Its clean, monochromed aesthetic aligns with contemporary tastes, making it suitable for all ages—from children to adults. Compactly and lightweighted, it fits easily into pockets, bags, or key rings for on-the-go use. A keyring attachment ensures it can be securely fastened to a key chain or backpack, preventing loss while keeping it readily accessible. Specifications: [Component]: ABS [Product size]: 10.8x3.7cm/4.25x1.45in (length is the total length from the bottom to the straightened buckle) [Product weight]: 18g [Color selection]: optional [Display digits]: 8 digital display Package Includes: 2pcs calculator keychains note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.