Wall Adapter Base, Height 16 in, Width 4 3/8 in, Features Adapter Attaches Flush to Concrete or Steel Vertical Structures, Length 9 in, Color Gray, Mounting Location Wall, For Use With MSA Safety XTIRPA Adapter Base System, Tensile Strength 8, 640 lb, Compatible Component Upper Arm Mast, Confined Space Component Wall Adapter Base, Weight Capacity 360 lb, Mounting Type Bolt-On, Includes Not Applicable, Base Features Flush, Base Installation Fixed, Base Material Stainless Steel