Mori Lee Size 10 Wedding Dress

Mori Lee Size 10 Wedding Dress Has a few untreated stains as shown Comes with the extra shown piece that I believe is supposed to be attached to the back but I’m not sure exactly how! 100% Polyester Measurements Taken Laid Flat Are Approximate: bust 17.5 inches, waist 14.5 inches, front length from shoulder 55.5 inches, back length 75 inches 2 LBS 6 OZ NOCON