Here at the ParkingZone, we do our best to offer a variety of products that work. The 2'' Delineator Sign Adapter Set is an interlocking bracket used to mount signs onto round posts measuring up to 2-3/8''. They feature a built-in 4.5'' sign support and ribs incorporated into the design for increased clamping pressure to prevent the sign from spinning. These sign brackets are reusable and 360° adjustable to mount signs in any direction. The design does not require any labor-intensive drilling into sign posts which eliminates possible damage to existing posts.