The Flip n' Flyer is an innovative and really fun toy. It's part Frisbee, part yoyo, and part gyroscope. The key is to get the disc spinning. While it's spinning it will stay at the angle at which you've spun it letting you do all sorts of neat tricks. If you spin it flat, it stays flat. If you spin it vertically, it stays oriented vertically. It's because of a physics principle called the conservation of angular momentum. In fact, Flip n' Flyer is great for teaching or learning about gyroscopic principles. It's also great to play with by yourself or with someone else. It works just like a regular Frisbee that you can throw and catch, but the elastic cord lets you do a myriad of amazing tricks as it spins. The Flip n' Flyer comes in many colors, shipped randomly. If you'd like a specific color, just ask. Diameter = 9 1/8 inches, Height = 1 3/16 inches.