Aigner’s 2”x 6” color coded reversible magnet can be used to quickly identify a “stock-out” condition when the “Red” side appears. Reverse the magnet to the “Green” side when stock is available. It adheres to any metal surface. Identify the product by applying a self adhesive bar code label or simply by using a wet/dry erase pen. They are available in packs of 12 and can be scissor cut to smaller sizes on location.