The neon green Spinburst was Spingear's own branded yo-yo for looping tricks.
This particular yo-yo was a special release for the AXEL 2019 event in Tokyo, Japan on May 6, 2019. No idea what that was. Identical model to the regular Spinburst but with special edition sidecaps that say, "MUSIC X FREESTYLE SPORTS" and use pink rims/body.
Uses a starburst response and a size K ball bearing axle.