10 Frame Polystyrene MEDIUM Super (unassembled) [10PM] | Blue Sky Bee Supply
Waterproof Crown Cornice Frame Moulding Plastic PS Polystyrene Building Material Home Decoration - China Construction Material, Picture Frame Moulding | Made-in-China.com
INTCO helps recycle polystyrene waste to make new frame products
Amazon.com: Frame USA 18x24 Deluxe Polystyrene Plastic Poster Frames (Gold), Made in America : Everything Else
Polystyrene Cornice, Joint Cornice, Big Size Cornice Picture Frame Moulding - China Construction Material, Picture Frame Moulding | Made-in-China.com
6 Frame MEDIUM Plastic Corrugated Dividing Board for Polystyrene [MDB] | Blue Sky Bee Supply