The Vevor canvas boards set includes 12 pre-primed 11" x 14" panels designed for painting, sketching, and mixed art use. Each board features a cotton canvas surface on a sturdy 3 mm MDF backing for stable, warp-resistant support. The triple-gesso primed surface is ready to use right out of the pack. These panels are suitable for acrylics, oils, watercolors, sketches, and paint markers. They are designed for beginners, students, kids, hobbyists, and professional artists alike.