You will receive 48 pocket-sized classroom calculators in three styles: 16 battery-powered kid-friendly calculators and 32 button battery-powered kid-friendly calculators across two styles. Sufficient quantities will meet your daily use and replacement needs, you can share them with classmates. The battery-powered kid calculators come in eight bright colors including blue, pink, purple, green, black and yellow, run on Aa batteries (batteries not included). The button battery-powered calculators come in two distinct color styles, run on button batteries which are included with your order, you can use a screwdriver to loosen the battery compartment cover to replace batteries when needed. These basic student calculators feature smooth candy-colored flat panels with slim, compact bodies that easily slide into drawers, school bags or pockets, making them ideal for students, office workers and business professionals.