Letter Change extension arm for rigid pronto lettersOne of the easiest ways to change letters on a mounted marquee sign. Best for tall signs. Adjustable length pole makes the job easier with a 2" or 3. 75" soft suction cup (other options available) to hold letters while inserted in track overhead. Best with acrylic and polycarbonate letters and push up, drop down track. Price includes a packaging surcharge imposed by UPS.