The Mathematix Glass Rasta Frit Screen Bowl Sherlock Glass Pipe is a Rasta-inspired hand pipe with a built-in glass screen. The red, yellow, and green glass melt into each other, making each piece different and original. The unique bowl shape stands on its own, sporting a Mathematix emblem on the neck and carb on the side. Never worry about having extra filters, the bowl has a built-in glass screen. The frit glass is durable and the perfect size for the traveling smoker.