Rotary Spinning Keyring

Finish: Nickel Plated
Design: Double Sided
Size: 37mm x 37mm x 6mm
Key ring Size: 25mm
Total Length: 95mm
Price: $25

The perfect gift! Whether you have a 12A, 13B, or even a 20B, this key chain is the perfect miniature replica of your Rotary Engine! This keychain was developed to replicate the precise movements of the Rotary machine. It features a Rotor that can be rotated, with each apex of the rotor sweeping along the Peritrochoid shaped Rotor Housing.  Use it to educate Piston driving friends, the Rotor rotates seamlessly inside the housing as a miniature Rotary Engine. There’s a tremendous amount of attention to detail in this keychain.

Rotary Spinning Keyring