Displays2go Wind Sign Stand Is Double Sided with Snap Frames for Accommodating 23 x 33 Inches Posters - Aluminum Construction (SS15A2333) Steel springs limit the impact of wind on the poster frame. Snap frames for easy front loading sign changes. Satin silver finish for a sleek look. Clear plastic lens included to prevent against glare. Outdoor pavement board is stops light moisture from ruining 23" x 33" posters.