Product details:

Lightweight and portable, these Foldable Black/White V-Flats by V-Flat World is a fresh take on the well known V-Flat. The V-Flat is white on one side to reflect, and black on the opposite side to block and/or subtract light. Each board is approximately 40.0 x 80.0 x 0.5". Opened fully yields an 80.0 x 80.0 surface. And for travel, the 7.0 lb V-Flat folds to a compact 40.0 x 40.0 x 2.0". The hinged design offers a variety of useful positions. Included with each V-Flat is a poly cotton carrying tote bag.