The S.M.MART presents revolutionary Shaker bottle design, This S.M.MART Shaker has unique bullet shape round bottom design from inside for complete mixing Protein Shakes totally resulting in smooth and lump free Shakes every time. Unique mixing heavy blending ball makes it all that easy to mix shakes. The modern design makes it one of the most Practical shaker bottle for carrying around. It has a very convenient unique extended loop in the cap for a very easy caring, it has Volume marker for easy reading. This Shaker bottle is high Quality shaker bottle, made of BPA free totally food grade plastic. This shaker bottle is 100% leak proof. The bottle and lid are Dish-washer safe.