The transparent version of the Rotor was our first version of the new design and was sold until summer of 2012. The massive yellow Rotor replaced it. 

We improved the material, designed it to resist even greater amounts of sand and water and improved the attachment of the chickenstick. Lastly, we better encapsulated the release mechanism to prevent foreign objects from entering it.

Version 1.1 since Mid 2012:

Version 1.0 until Mid 2012: