Mounting Bracket, Powder Coated Safety Yellow, Depth (In.) 4 1/2 in, Length (In.) 4 1/2 in, Width (In.) 2 1/2 in, Connects Gate to Angle Iron 3-3/4 x 3-3/4 in Max. Dimension, Provides Optional No-Drill Mounting of Gates to Mounting Surface, Mounting Adapter, Includes Adapter Bracket, Bolts, Installation Instructions