Confined Space Hoist Center Mount Sleeve, Height 9 1/4 in, Width 8 in, Features Mounts to Flat Surfaces, Length 12 1/2 in, Color Yellow, Mounting Location Floor, For Use With Davit Arms, Tensile Strength 5,000 lb, Compatible Component Lower Mast Extension, Finish Zinc Plated, Confined Space Component Base, Weight Capacity 450 lb, Mounting Type Bolt-On, Includes PVC Liner, Base Installation Fixed, Base Material Steel, Base Mount Style Floor Mount, For Use On Concrete, Steel