Ages 3-8. Great big cash register is a real working solar-powered calculator! Children will love learning basic calculator skills with the oversized buttons and big number display. It even holds life-size money! Comes with true-to-life bills, coins, credit card for added fun, and activity guide. 10-1/2 in. W x 9-1/2 in. D x 5-1/2 in. H.