Aluminum Protobox--5 lb

Part #: 21886

It's an aluminum mystery box! Filled with a variety of shapes and sizes, perfect for the serious fabricator or the hobbyist, with most pieces smaller than 12" x 6". 

Each Protobox is different, based on the materials available at the time your box is packed. 

View our "Guide to Aluminum" for available grades, shapes and additional information.