LARGE SIZE: 6.2*4.2 in.Weight: 122g.Automatic sleep function（It can also be closed manually）, Easy to put in Pockets,Bags. BIG DISPLAY: Large button,candy color. Large LCD screen, 12-digit display, vertical back, 15-degree angle for easy-to-read calculator. APPLICATION SCENARIO: Made from durable ABS material, this portable general-purpose desktop calculator is ideal for home, school, office, or shop use. It handles everyday calculations with ease and also includes financial functions, making it perfect for both adults and students. DURABLE SILICONE KEYS: Good feel, light weight. Reasonable configuration, comfortable operation, automatic shutdown, independent memory, M+, M-, total (GT),Delete key(▶),percentage(％),square root(√￣).Shutdown key (OFF).Anti-slip design, with anti-slip washers, it is not easy to slide during operation. CONVENIENT SCHOOL-SIZE CALCULATOR: This large calculator is designed to sit flat on a desk, countertop, or table for easy use, yet it's compact enough to take with you on the go. A nifty calculator makes it more comfortable to use when you need it. It can be used for about two years, and replacing accessories after two years is a very simple operation.