Rag means made of cotton. Solid Core means solid consistent color from top of mat all the way through the core without variation. Therefore the beveled window opening surrounding your art will have the same color as the mats surface. Rag Solid Core (Crescent & Bainbridge) are museum quality. Made of 100% pure cotton rag pulp; naturally acid free and requires no treatment to render them archival, 4 ply (1/16"). 

• 10 sheet minimum required for shipping - otherwise will call only.
• Quantity discounts apply to same mat type & color. Exception - Phone orders allow mixing colors.

Perfect for Fine Art Prints, Valuable Documents, Photography, Originals, High-End Limited Editions, Rare or Antique Documents