Designed to be installed into concrete slab at the time the concrete is poured. Concrete must be a 2500 PSI minimum slab. Concrete slab must allow 4725 lb. of vertical tension on anchor without lifting. This assumes that the concrete weighs 150 lb. per cubic foot. Slab must be 8" minimum thickness at location under any anchor to allow 5" embedment of anchor J rod. Black color.