Quantum.Quattro Share definition Flag An extremely cool crystal. Also the best tiktok account on the entire site. Person a: have you heard of Quantum.Quattro Person b: only the crystal Person a: fucking die Quantum.Quattro by Quantum.Quattro June 16, 2022 0 0 Get merch Get the Quantum.Quattro mug. Buy Now — $32.95 See more merch