Tray Size: 12.5 inches X 8.5 inches (approx)
Coaster Size: 6pcs 4 X 4 inches (approx)
Depth: 1.12 inches (approx)
Thickness: 0.5cm
They can be used for mixed media, altered art, decoupage, etc....
Also, they can be painted with any acrylic colors, chalk colors, waxes, etc...
