Plano ammo cans are designed using a water-resistant O-ring seal with a brass bail latch in order to keep ammo and small items safe and dry. A heavy duty handle allows for easy carry and transport of the box. The molded in stacking ridges provide you with a slip resistant stack-ability perfect for space saving storage. The boxes themselves are made from high quality polypropylene which is a high quality plastic that will last for many years to come. Outside Dimensions: 11.625 x 5.125 x 7.125 Inside Dimensions: 9.5 x 4.25 x 6.5 .