We made these clocks originally back in 2009 as promotional items for our retailers and to supply to military bases for use in the mess but interest has been so great because they are a great talking point in an office, workshop, garage, reception area etc that we decided to retail them too. The wall clocks measure 22.5 cm (approx 9″) and are in a strong and robust High Impact Polycarbonate case. The clocks have a high accuracy quartz movement and silent sweep so that you avoid the annoying clicking which can be annoying with most quartz clocks. They are supplied ready to go and complete with battery. If you want something different and out of the ordinary this has to be it!