[Revolutionary Open-Closed Sign Board]-- Just rotate the handle, and open and closed switch in a magical way. Combines interesting typographic tricks and a gear mechanism.[High quality material]-- The open and closed gear signs are made of selected wood. Many parts are carefully calculated and assembled to form unique shapes. Cut and edged in a special way without sharp spikes and brittleness.[Convenient and Clever Design]-- The Open Closed Sign Just turn the handle, Open and Close will magically be interchanged. Not only fun but practical. It 39;s easy to handle and sturdy enough for everyday use. Standing and hanging, two types are available to suit your purpose. It 39;s easy to handle and sturdy enough to withstand everyday use.[Combining Art and Practicality, perfect gift]-- The switch sign is also a art that adults and children can enjoy it. The beauty of its structure will impress you. There is a mysterious satisfaction in just watching it move. It 39;s also a great educational toy for kids that allows children to learn how gears work while having fun.