Holding the bottom, pull the string as hard as you can and then set the top down on a smooth surface - it will spin and spin for an incredibly long time before it topples over (we've consistently achieved 2 minutes). Spin them fast enough and they will whistle. All metal construction, the Spinning Tops come in a case of 12 with a variety of color and pattern schemes. You'll get one of these shown although we don't know which one.
Kids will love these. Available individually, of course, if you want to give them away as stocking stuffers, a full case of 12 can be had at a 16 Savings. Fantastic stocking presents.