Black Diamond manifold gauges are drop forged with a high-grade aluminium alloy. This reduces the weight while maintaining a durable structure. The patented magnetic buckle provides a convenient 2-in-1 method to hang the manifold while working. For a magnetic surface, the magnet part of the buckle can be used to quickly secure the manifold gauge. For non-magnetic surface, the hook part of the buckle can be used instead. The large 80mm gauges provide clear and precise readings for the technician to see.