U-Bolts for 2" Square Metal Posts are most typically used to attach the Existing Fence Conversion System arms and Dog Proofer Arms to decorative aluminum / wrought iron fences. Although some decorative aluminum and wrought iron fences have pickets spaced close enough together that cats cannot squeeze between, many do not. If the spaces between the pickets in your fence are large enough for your cats to squeeze through, please call us at 888-280-4066 so we can discuss your options.
