Small 400ml drink mixing shaker which has a secure screw on lid with a snap closure. It is manufactured from polypropylene which is shatterproof, odour-resistant and BPA-free. It is designed for mixing and pouring powdered drinks and nutrition supplements. It has both metric and imperial graduations and a stainless steel mixing ball which helps to break up powder granules. This product is not dishwasher safe and handwashing is recommended.