Suitable for clock faces with a maximum thickness of 4 mm. With the creative and practical movement and four sets of clock hands, you can create your very own clock. You decide on the material, shape, and color, ensuring that each clock is guaranteed to be unique. Includes an additional metal hanger. Made of plastic. Dimensions: 5.6 x 5.6 x 3.4 cm (WxHxD). Requires 1 x 1.5 V AA battery (not included). TFA Dostmann. With over 1000 weather and measuring instruments, the German company TFA Dostmann is one of the leading companies in the industry in Europe. The TFA range is characterized by its own innovative technologies and exclusive designs, and is continuously developed in collaboration with meteorologists, IT specialists, and designers.