528Hz is known as the “Frequency of Love.” This frequency has mathematical significance, proven healing potential, and a foundational relationship to nature. The resonant frequency 528Hz can be found in everything, from Chlorophyll to our Human DNA. Even John Lennon’s “Imagine” is composed in C Major, which resonates at 528 Hz. All our products are imbued with 528Hz to spread the Love! 528 carts use 510 thread and can be paired with any standard 510 battery.