Float your artwork and posters off the wall while fully enclosing your art in between two panels of acrylic. Ideal for 18x24" posters and art. Includes: 2 acrylic panels 21x27" OD (3/16 and 1/8 inch thickness) with polished edges, 4 wall mounts (5/8" diam x 1.5" long), 4 screws and anchors. No magnets needed. When you want to change out your display, just unscrew the caps on the hardware and lift off the top panel of acrylic.