This is a ProSpin made in 1984 by the D.F. Duncan Company. This yo-yo seems to have been made during the Duracraft time frame of Playmaxx, however there is no branding with such information on the packaging or yo-yo, even though Duracraft had been around for a quite a few years at this point. The ProSpin is a standard shape with a fixed axle. If anyone has more detailed information on this subject please email me so I can update this.