BACKINGS for 16 x 20 Stills. 16 x 20-1/4". .125" thick B-flute Corrugated Cardboard. White both sides. Short-term Storage.

16 x 20 Still Backings
16 x 20-1/4"
.125" thick, B-flute Corrugated Cardboard.
White on both sides. Short-term storage. These backings are a popular choice for poster backings due to their rigidity and economical price.