Worried about breaking the glass while assembling your wood or metal picture frame kits? Then you’ll be glad to know that we offer a glass alternative: acrylic. It’s strong but lightweight with an impact resistance that makes it all but shatter-proof. And acrylic won’t distort the images in your frames. (By the way, acrylic may have been around longer than you think. It was developed in 1928, and first sold under the Plexiglas® name in 1933.)