Weight/Lineal Foot: 5.0
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The Aluminum Protobox 5 lbs. is our most popular Protobox option due to its light weight, machinability, and affordable pricing. Each Aluminum Protobox is filled with unique material profiles, from round rods to flat bars and tubes, with each piece typically measuring smaller than 6” x 12”. Our customers love to use it for prototyping, welding practice, and testing out their lathes and other machinery.