Isaac Jacobs Super Thick Acrylic Magnetic Block Frame, 4x4 inches THICKNESS: 23mm Thick Acrylic (0.9 inch) EASY TO USE: Simply slide the magnetic panels off, allowing you to place your picture quickly and effortlessly MULTI-PURPOSE: Double-sided see through frame lets you showcase a picture or memento in the front and in the back MULTI-FUNCTIONAL: Free-standing frame can be displayed vertically or horizontally for landscape or portrait view GREAT FOR GIFT: Classy look matches any design or style, which makes this the perfect gift for family and friends to share great memories in their home or office