... prices. -- About our products --Product Material: Polystyrene(PS)Compared with wooden material, polystyrene(PS) has many advantages:Competitive price, environmental-friendly ... . Product ranges:Photo Frame, Picture Frame, Oil Painting FrameDocument Frame, Certificate Frame, A4, A3, 8.5x11", 11x14"Wedding Frame, Anniversary Frame, Ceremony Frame, Graduate Frame, Collage Frame, Signature Frame, Mirror