Home Desk and OfficeCalculators Water Powered Calculator Water Powered Calculator 8 digit calculator. Works for 24 hours when filled with a few drops of water. Print Area 60 x 10mm Dimensions 75 x 110 x 10mm Product Code 7827 Quantity 50 100 250 500 Unit price £8.85 £8.30 £7.94 £7.32 Carriage and origination is extra Enter Quantity Add to my quote Request Callback Do you own this product or have you used it? Please share your experience with other shoppers. Rate Product Select a Rating 5/5 - Excellent 4/5 - Very Good 3/5 - Good 2/5 - Average 1/5 - Bad Email - will not be displayed First Name Review Submit