Platform 9 3/4 Harry Potter Inspired Vinyl Wall Decal 12.5 inches wide by 12.5 inches high Decal is BLACK. Detailed instructions are included. Please note: PREVIEWS ARE NOT TO SCALE! Please review the product dimensions noted in the first bullet point. Please review the BUYER BEWARE image! We use only high quality Oracal 631 vinyl film & ship within 3-5 days via USPS with tracking. Decals do not adhere well to paint with an egg shell finish. Decals are easy to apply and remove and will not damage your paint.