The #312 is the perfect solution to protect your small collectables and valuables when you need a heavy duty case to safely transport, secure, and keep your items dry in any situation. Ideal for first aid kits, medical supplies, jewelry and more. Foam option - our #312 hard case includes convoluted egg foam in the lid. (1) base layer of 0.5? thick foam, and (2) layers of 1.25? thick pluckable cubed foam that allows you to customize the fit to your items. Our injection molded CN-1 resin is formulated to be lightweight but virtually indestructible.