Stimulate Creativity: Simple design makes you create your own personalized wall clock with numbers, photos or paintings. You can design the position and size of the wall clock as you like while enjoying the fun of DIY with your family and friends. Extra Large Size: Hour hand length: 31.3cm; Minute hand length: 39cm; Minimum clock face diameter without numerals: 63cm; Suggested clock face diameter with numerals: 70cm -100cm. (DO NOT rotate the clock hands directly as it will damage the movement.)