Ezyoutdoor Bike Ring Loud Sound Mini Thumb Bike Horn Bell Bicycle Accessories For Riding Cycling Outdoor Sports This Aluminum compass for bike is perfect for your direction, right there in front of your eyes. It is helpful if you don't know the terrain you're biking in. You will love the idea of having a cycling compass mounted on your bike! Easy to use, just press the black pad and release immediately.Easy to install:Special screw design, easy to install on the handle bar of a bike. All you need is a screwdriver. Suitable for less than 22mm/0.86'' handlebar in diameter(screw adjustable).Note: The compass at this bell is not accurate, just for decoration, pls notice. Size(L x W x H): 7cm x 4cm x 4cm/2.75" x 1.57" x 1.57" (Approx.).The metal bell has a screw attachment to fit on to the handle-bars, and the bell itself is loud and clear. Package included:1 x Bike Bell;Lifetime warranty;7-15 business days delivery date with tracking number