12x18 and Smaller Paper Prints are smooth acid free paper with a neutral ph, a natural warm tone for a beautifully printed image. Larger than 12x18 Paper Prints are on a textured acid free watercolor paper with a neutral ph, a natural warm tone for a beautifully printed image. Canvas Prints are 20 mil thick poly cotton blend canvas that once printed is top coated with a satin varnish to protect and preserve the print. Mounted to a 5/8” deep stretcher frame. Best for mounting into a picture frame. All prints are shipped - FREE - nationwide