Lightweight aluminum blank panels finished in a durable flat black powder coat ideal for machining. Aluminum construction and Flanged Panel Contractor Packs provide a cost-effective, space-efficient way for installers to stock the panels they use most frequently. Allows easy access to individual, poly-bagged blank panels. Designed to stack on warehouse shelving. Flanged aluminum construction, can be machined easily. Black powder coat finish. Sold in a contractor pack of 12 pieces. Pieces are individually poly-bagged, in a convenient dispenser box.Lightweight aluminum blank panels finished in a durable flat black powder coat ideal for machining. Aluminum construction and Flanged Panel Contractor Packs provide a cost-effective, space-efficient way for installers to stock the panels they use most frequently. Allows easy access to individual, poly-bagged blank panels. Designed to stack on warehouse shelving. Flanged aluminum construction, can be machined easily. Black powder coat finish. Sold in a contractor pack of 12 pieces. Pieces are individually poly-bagged, in a convenient dispenser box.