Material Wood MDF 3 mm wood, with colored sections and numbers, reaches 1.2 cm. It is a silent flowing clock mechanism. Our products are our own production. They are carefully produced in our Laser Cutting Machines. They are 40 cm in diameter. Return conditions: Your products must be returned in the same condition as they were received, with the box and packaging intact. Otherwise, the returns sent will not be accepted. MDF is made of wooden material.