This liquid-diamond, 510-thread cart from Endgame is a game-changer. Consisting of THC diamonds mixed with a delicious blueberry-terpene blend to deliver some of their hardest-hitting carts to date. Blueberry Octane is a sweet, fruity/berry, OG-reminiscent 510 cart that is potent and easy on the draw thanks to its expertly formulated botanical-terpene blend.