GWM1117- 11" x 17" Suction Cup Sign Holder Portrait or Landscape This unit uses premium suction cups made in the USA for long life and strong holding power Availability: In-Stock Product specification: This unit uses premium suction cups made in the USA for long life and strong holding power This window unit is for doublesided posters! This unit can be used for 11" wide x 17" high signs or 17" wide x 11" high signs Made from clear acrylic, call for pricing on 25+ Units.