This is the STELVIA XSP, an “Injection Machined” yoyo which is a technique that achieves that classic yoyojam over molded bearing seat feel but the quality of a premium machined aluminum. It is first injection molded into a large plastic blank then the profile is completely CNC machined. This is an independently funded project that I have dumped a monumental amount of money into, so it’s pretty surreal to see it completed! This variant dubbed the Stelvia "eXtreme Stability Plastic" has been designed to mimic how a metal yoyo feels based on rotational intertia values. A combination of heavy prototyping and computer simulation has helped achieve a metal like feel while keeping the soul and fun of a plastic yoyo. Specifications: Diameter: 59.00 mm Width: 48.00 mm Gap Width: 4.50 mm Weight: 67.54 grams Bearing Size: Size C - Centre Trac Response: 19mm Slim Pad Material: Machined Polycarbonate
