... for artist oil or acrylic painting.Stretching ways: NSSB, SS, NS, SB, SFKiln dried pine, or paulownia stretcher barFrame thickness:1 ... primed for oil or acrylic painting.Stretching ways: NSSB, SS, NS, SB, SFKiln dried paulownia or fir stretcher barFrame thickness:1 ... primed for hobby oil or acrylic painting.Stretching ways: SS, NS, SB, SFKiln dried paulownia or fir stretcher barFrame thickness:1 ...