This is a small bicycle clock made out of recycled bicycle sprockets. This unique bike clock is made with a brand new, non-ticking quartz clock mechanism. Runs on 1AA battery. It measures close to 12.5cm (4.7'') in diameter. Desk version comes with an aluminum desk stand. It 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! :) All my recycled clocks are made from previously used parts. They are thoroughly cleaned but might show some signs of previous usage. in my opinion this adds to the item's charm. Bicycle Desk Clock, Steampunk Decor, Industrial Small Unique Boyfriend Gift, Husband Father Gift