Features: Safe operation: The marquee sign letter change arm pole enhances safety by allowing operations without prolonged exposure to heights, decreasing safety risks during the letter changing process. Attractive design: Not only is this readerboard sign letter change arm functional, but its sleek main black color adds a dimension of style. Its aesthetic appeal does not compromise on its functionality making it a tool for all your needs. Specifications: Material: aluminium alloy, silicone Color: black Size: Letter change arm pole: about 6 ft-12 ft/ 1.83-3.66 M Suction cup: about 4 inches/ 10.16 cm Package includes: 1 x Letter change arm pole 1 x Suction cup Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays