An Aerobie is a flying ring used in a manner similar to a chakram or flying disc (Frisbee), for recreational catches between two or more individuals. Its ring shape of only about thickness makes the Aerobie lighter and more stable in flight than a disc. It can be bent to tune it for straighter flight. Since it has very low drag and good stability, it can be thrown much farther than a flying disc. The Aerobie was used to set two former world records for thrown objects. Designed in 1984 by Stanford engineering lecturer Alan Adler, the Aerobie has a polycarbonate core with soft rubber bumpers molded onto the inner and outer rims. The outer rim has a spoiler designed to impart stability. History In the 1970s, Alan Adler began attempting to improve the flying disc, considering its design characteristics. He tried streamlining the shape to reduce drag, but this resulted in a disc that was more unstable in flight. Eventually, inspired by British accounts of deadly Indian weaponry and martial arts, he turned his attention to the ring shape of the chakram, a formidable Punjabi weapon used by the Sikh of India. This led to the development of the predecessor of the Aerobie, which was called the "Skyro". About a million of this model were sold. In 1980, it was used to set a Guinness World Record throw of . It lacked the spoiler rim of the Aerobie. It had low drag but was stable at only a certain speed. The later introduction of the spoiler, which balanced the lift, made the ring stable "over a wide range of speeds". After testing several models, the ideal shape was found, and the Aerobie was produced. Adler founded Superflight, Inc. (later known as Aerobie, Inc.) in 1984. In 2017, the assets of the Aerobie flying ring and other Aerobie assets were sold to Swimways, a subsidiary of Spin Master, and the company was renamed to AeroPress, Inc. Characteristics The Aerobie allows for throws over unusually long distances. It flies faster and farther than a common flying disc. When well tuned, it can fly in a straight line, "like a puck on an invisible sheet of ice". It does not have the tendency to roll when thrown level, as a flying disc does. But similarly to a disc, an Aerobie can be thrown in a curved path by throwing it in a