SizeThe Sublimation Slate Blank comes with 6 pcs sublimated blank photo frames with display stands, which measure 7.9 x 6 x 0.31 inches/20 x 15 x 0.8cm(Length*Width*Thickness), Rectangular shape, white color.Good Quality MaterialThe blank picture frame is made of slate rock, which is strong and durable, not easy to wear, and water resistant. A smooth surface is not easy to tear and can keep the color for a long time.DIY Sublimation PhotoThese slates are great for making a photo to memoried your friends, dogs, or special days, They have a Rectangular shape that is perfect for images with a balanced composition. The images are printed directly onto the slate surface, using a dye-sublimation printing process that produces vibrant and long-lasting colours.