Our product is produced as 3mm mdflam and above gold plexi. Our product is 3 pieces and the size of each product is 19x15 cm. It is 100% Domestic Production. THERE ARE NO SIGNS OF RUST ON OUR PRODUCTS. THERE IS A PROTECTION FILM ON IT, PLEASE REMOVE THE PROTECTION FILM. PROTECTION FILM PROTECTS BURNS, SCRATCHES, ETC. FROM LASER CUTTING. PREVENTS SUCH SITUATIONS. It is sent with double-sided tape so that you can apply it to the back of our paintings. (DO NOT FORGET TO REMOVE THE TAPE) There is protective gelatin on the mirrored plexi parts to prevent scratching. Take it out.