This biodegradable plastic pocket sized flip cover calculator with rubber grips is a fun product with a unique opening mechanism. With the push of a button, the cover flips open to reveal the display and elevate the calculator for easy use. Powered with button batteries. BioGreen products are made from environmentally friendly plastic which will biodegrade in a regular landfill within 18-60 months. BioGreen products are perfect for any eco friendly program. We can make just about any plastic item with BioGreen, so ask your HCL rep if we can manufacture or source a product made from BioGreen today. Imprint Size: 1 5/8"w x 7/8"h Optional Imprint: 1 1/2" w x 1/4"h. Item Size: 3"w x 3 1/4"h.