This is a unique bike wall clock made from recycled bicycle sprockets. Unique clock hands make the clock very eye-catching. This industrial clock measures around 7.8'' ( close to 19.5cm) in diameter. Made with a brand new quartz clock mechanism. Runs on 1AA battery. Makes a great boyfriend gift or husband gift. We can offer a custom engraving of your choice on a small, brushed metal plate affixed to the back of the clock. The clock will make a great gift for any bicycle lover or someone who already has everything. It also looks great & will make a great conversation starter in your home or work place. & of course, it tells time! :) Check out my other stuff: clocklight.etsy.com geargems.etsy.com It is made from real, used bicycle parts & although thoroughly cleaned they might show some signs of previous life (like small nicks, scratches or corrosion spots). in my opinion this adds to the item's charm. Thank you for looking, & if you have additional questions don't hesitate to ask, I'm here to help. Recycled Bike Sprocket Wall Clock Industrial Bicycle Art