JoJo's Bizarre Adventure Stone Ocean × 320design (ジョジョの奇妙な冒険 ストーンオーシャン × 320design) is a collaboration between the fashion brand 320design and the JoJo's Bizarre Adventure franchise, particularly Stone Ocean.
320design is a Japanese company specializing in the manufacturing and selling of effects pedals as well as other accessories and equipment for electric guitars.
The collaboration with JoJo's Bizarre AdventureStone Ocean was announced on September 10, 2022, and released on October 1, 2022. It included a Jolyne-themed effects pedal, Strung Fuzz, as well as several kinds of guitar picks and straps.[1] The Winter 2022 issue of JOJO magazine featured an interview with Mr.320 about the collaboration focusing on Strung Fuzz.