Our acid-free Bright Red Suede matboards are 4-ply and feature a white core. With an overall size of 6x6, these mats with Circle openings fit perfectly into 6x6 frames and are bevel cut to showcase your 3x3 photos. Actual mat opening size is 2.5x2.5 inches so that it may safely and securely house your 3x3 photo, artwork, needlepoint, sign, etc. This pack includes 1 Single Matboard. Proudly made in the USA by Country Art House!