This chocolate-bar shaped solar calculator is called " Choc-u-lator" & it’s the perfect gift for "chocoholics". & it’s even better if you’re on diet. Getting this solar calculator for a chocolate addict who’s on a diet may seem like a cruel joke, but it isn’t really. It’s actually a great way to help them keep track of all the weight they’ve lost, while they enjoy the delicious smell of chocolate without adding excess calories to their waistline. It’s twice eco-friendly: it doesn’t use batteries & isn’t greedily consumed. " Choc-u-lator" Solar Calculator Solar powered, no batteries required Product is not edible Ideal gift for chocoholics Weight: 91gr / 0.2 pounds Measures: 11.43 x 6.35 x 7.62 cm / 4.5 x 2.5 x 3 inches