𝐁𝐚𝐜𝐤𝐢𝐧𝐠 𝐁𝐨𝐚𝐫𝐝𝐬: Double-sided White craft board backing for picture frames, mats, crafts, and more 𝟖” 𝐗 𝟏𝟎” 𝐕𝐚𝐫𝐢𝐚𝐭𝐢𝐨𝐧: Quantity: 50. Size: 8” X 10”; Thickness: 4-ply (approx. 1/16”, 1.3mm). Package dimensions: 10” X 8” X 3” 𝟏𝟏” 𝐗 𝟏𝟒” 𝐕𝐚𝐫𝐢𝐚𝐭𝐢𝐨𝐧: Quantity: 50. Size: 11 X 14 inches; Thickness: 4-ply (approx. 1/16”, 1.3mm). Package dimensions: 14” X 11” X 3” 𝐁𝐞𝐚𝐮𝐭𝐢𝐟𝐮𝐥 𝐏𝐫𝐞𝐬𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧: White boards are white on both sides for a clean, crisp look 𝐒𝐞𝐜𝐮𝐫𝐞 𝐏𝐚𝐜𝐤𝐚𝐠𝐢𝐧𝐠 𝐃𝐢𝐬𝐩𝐥𝐚𝐲: The opening-size clear plastic storage bags accurately secure all prints/art/photos per variation. The rigid white cardboard sheets provide sturdiness and support for any art display (in a bag or frame) 𝐒𝐮𝐩𝐞𝐫𝐢𝐨𝐫 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧: All materials (mat + back) are acid-free to protect your art for its lifetime. Mats and Backs are sold separately