30 Pcs\. Of Merkaunis Small Pocket Calculator, Dual-Powered Black, And School. Product Details Abundant Quantity: You will receive 30 pieces of handheld electronic pocket calculators, they are designed with a black color, simple but elegant; Sufficient quantity can meet your different demands, and you can share these practical pocket calculators to your friends and classmates. Dual Power Calculators: These pocket calculators are powered by solar or battery power. It can work in a bright place without batteries; If it is used in the early morning or at night under low light conditions, insert the battery (not included) for continuous and accurate use. Appropriate Size: The size of each pocket size calculators is about 11.5 x 6.5 x 2 cm/ 4.3 x 2.4 x 0.79 inches, it is portable and practical. So it can be placed in pockets and bags and adopted at any time, lightweight and comfortable to calculate when using on desktop or handheld devices. Rich Functions: This hand held basic calculator adopts 8-digit LCD display with memory function, can shut down automatically, bring nice using experience and is with constants for addition, subtraction, multiplication and division. Besides, wide keyboard with raised keys help press the buttons accurately. Wide Range of Use: These small calculator are suitable for both office and school, proper for teachers, professors, home school educators, hobbyists or daily simple calculation, portable and practical, and they will create a convenient lifestyle; They also can be regarded as nice gifts for elementary school students. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.