Queen of Bud's grinders are of course all inspired by crystals but are also magnificently matte. Satisfyingly square-shaped, they feature a twist-and-turn design for a silky-smooth grind. With sharp square-shaped teeth they manage to tear and fluff your herb to perfection. Made from aluminum, these 2-piece grinders are 55mm so can easily be taken on the go or kept at home. Available in Black Obsidian, Topaz, Aventurine, Amethyst and Rose Quartz.