The wooden frame is made of white pine, and the canvas is made of cotton. The coating is even and the texture is refreshing. The long-term preservation does not change color. Wood is also better! Can be stored for a long time.Contains acrylic coating, soft whiteness, good elasticity, suitable for painting oil paintings and acrylic paintings!Standard production applies to all colleges and painters' galleries.Each with a supporting plastic sheet, the cloth on the frame is loose and can be supported by this plastic sheet.