With plastic mouldings measuring 1 7/8 in. deep, hook mounting hardware, and a lightweight yet durable plexi window, Recyclo™ Rupert Shadowbox Frames are perfect for displaying sports jerseys, uniforms, costumes, concert t-shirts, textile artwork, or collectible clothing. Designed and made in Canada. Additional information Gallery frame vs. regular frame Gallery frames are generally deeper and thicker than regular frames. They allow you to frame either a gallery-profile or standard-profile canvas without the canvas protruding from the back. Gallery photo frames with glass are also deeper, creating a more dimensional look on the wall. What is a mat? A mat is a piece of cardboard, usually with a centre opening, that creates space between the artwork and the frame. Mats are designed for paper artwork only, not canvases. When a mat is included, there is typically a glass panel as well to protect both the artwork and the mat. The terms “acid-free” or “conservation” indicate that the mat is archival quality and will not fade, yellow, or damage the artwork over time.