This is a small bicycle clock made out of recycled bicycle sprockets. SIZE: 4.8'' (12.5cm) in diameter COLOR: Silver/black/distressed metal with black clock hands. MATERIALS: Solid metal bicycle parts, gears, sprockets. MECHANISM: Non-ticking, silent quartz clock mechanism. Runs on 1AA battery. VARIATIONS: Wall hanging or desk type 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 our 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. Check out our other clocks: Bicycle Clock, Sprocket Unique Bike Industrial Decor, Decorative Contemporary Boyfriend Gift, Husband Gift