Size is 13" x 18". The design is actually sublimated into the entire thickness of the fabric, not just silkscreened on top. Flag is single-thickness; however, the design shows the same on both sides. Light shining from behind creates a lovely stained glass effect. Of heavy-duty polyester, this flag offers outstanding quality at an affordable price. (Flagpole not included.) Note: Flag will retain its color and beauty for years if displayed in shade or semi-shade, and is rainproof.