The MEC Mayville Engnrng INC 8042 is a meticulously designed Mec magnum shot/powder bottle, offering a safe storage solution for your powder until it\'s needed. Unlike glass jars or other similar containers that may potentially lead to pressure buildup, this product provides a secure environment for your powder storage.For safety measures, it is highly recommended to keep the powder where there\'s no risk of spark, fire or flame. Furthermore, it should be stored in a cool, dry place away from the reach of children. Remember, in order for modern smokeless powders to explode, they must be confined.