The Gracie Wall Decals contains 3 sheets of various sized stickers. One sheet is 10 inches x 36 inches and 2 sheets are 10 inches x 18 inches. Over 50 alphabet letters included. Stickers range in size from 19.75 inches x 1.5 inches to 1 inch x .75 inches. They have self-stick adhesive that won't harm walls. The decals are removable and reusable. Just peel and stick.