Vinyl Wall Art Decal Sticker Sydney Opera House Decor This Vinyl Wall Decal is 53" X 21" Vinyl Wall Art Decal Sticker, great for decorating interior walls. These decals will last for many years. Some decals may come in multiple pieces due to the size of the design. After purchase, please email us your color preference. We will also contact you, please check your email. Application is fun and easy. Using only a plastic card, like a credit card. No other tools needed.