The first of these cameras were simple, leather-covered wooden boxes – small and light enough to be held in the hands. Taking a photograph with it was very easy, requiring only three simple actions; turning the key (to wind on the film); pulling the string (to set the shutter); and pressing the button (to take the photograph). There wasn’t even a viewfinder – the camera was simply pointed in the direction of the subject to be photographed. The resulting snapshots were circular and only two and a half inches in diameter. The Kodak was sold already loaded with enough paper-based roll film to take one hundred photographs. After the film had been exposed, the entire camera was returned to the factory for the film to be developed and printed. The camera, reloaded with fresh film, was then returned to its owner, together with a set of prints. To sum up the Kodak system, Eastman devised the brilliantly simple sales slogan: ‘You press the button, we do the rest.’