The Nebula was released in 2008 as Discrafts Ace Race prototype and eventually became the predecessor to the Buzzz OS. Since then, the Nebulas production has been discontinued at Discraft. That held true until the Ledgestone Edition Z Swirl Nebula was released as a limited run in 2021. The ESP plastic in this run increases grip and adds a tacky feel. These Nebulas all have vibrant swirls and a distinct shimmer with the metal flakes infused in the plastic. The stamp depicts the side profile of an astronaut helmet as the back end fades smoothly into a collection of galaxies, planets, and new stars in a nod to the disc molds name. This was part of a run of 1000 discs.