SteamASeam 2 Double Stick has the pressure sensitive on both sides which allows for a temporary hold to both the applique material and the background material. You can hold your project vertically and the applique pieces stay in place and are still repositionable until fused with an iron. Once fused, SteamASeam is washable and dry-cleanable. Unfinished edges won't lift or fray. 18" wide.