High Quality 3D Canvases (380 gr / m²)Not nailed or stapled on the sides.Sides can be painted to exhibit the finished painting without the need of an additional frame.Heavy high quality canvas. Even, medium - fine surface . Ideal for all types of techniques, including thick application of paint.Triple Priming with acrylic Gesso, acid-free.Consistent roughness and absorption properties prevent the oil paint from flaking off and improve adhesion.Professional and solid frame structure.Sufficient canvas on the back for re-tensioning