Fill bottom of ShredTainer and put middle compartment inside, push and twist to grind herb. Once herb is ground open and poor into top holding container. The ShredTainer is the latest and greatest in the world of multi-functional packaging. Based on the familiar air-tight Pop Top stye container, the ShredTainer takes your storage container to a whole new level by integrating a grinder into the container itself. The Grinding function of the ShredTainer is unrivalled and allows ultimate control over the consistency of the material being shredded. The ShredTainer is sleek, easy to fit in your pocket and features an additional Latch on the pop top closure to ensure the cap never pops open inadvertently. The ShredTainer is proudly manufactured in the USA using medical grade polypropylene plastics which are 100% recyclable. Grinder Features: Ultra smooth grinder with storage container Made in the USA and 100% Recyclable Child Resistant and BPA FREE Airtight pop top closure Ultra Smooth Grinder – Medical Grade Plastic