The Eagle Group MMNSDBC-K/A-21 is a heavy-duty double knob shelf "C" bracket designed for cantilevered shelving systems. Measuring 21 inches in length, it effectively supports two adjoining shelves on a common upright. This versatile bracket is compatible with both wire and solid shelving, accommodating dynamic loads with ease. Constructed from durable aluminum, it ensures long-lasting performance and reliability. NSF certified, it meets stringent safety and sanitation standards, making it ideal for commercial and industrial applications.