30 Piece Pocket Calculator Set, Small Calculator Pocket Size, Basic, Six Colors. Pocket Size Calculator: You will receive 30 pieces pocket size mini calculators in 6 different colors including red, yellow, blue, green, white, black. The quantity is sufficient and the colors are bright, which can meet the needs of you and your friends and classmates. Basic Calculator: Mini calculator has general functions of addition, subtraction, multiplication, and division, and also includes constants, percentage keys, square root keys, memory plus, memory minus, memory recall clear, which can meet your daily basic math operations need. Battery Powered: These mini calculators for students can be powered by international AA batteries. Mini calculator battery can be replaced according to actual needs, making it more convenient. Please note that batteries are not included in the package. Stylish Calculator: The pocket calculator is made of sturdy and high-quality plastic. The size is about 11.4 x 6.4 x 2 cm/ 4.49 x 2.52 x 0.79 inch, suitable for pockets and bags, ready for use at any time. Equipped with an 8-digit LCD display and high-sensitivity keys, it can improve your work efficiency. The Magic of Math: RAIHOMKIT 4 function calculator helps students start with basic math operations and gradually learn new math skills such as calculating percentages and square roots, helping children understand the world around them. It is very suitable for students to attend classes, teachers to teach, and workers to use in offices.