These are Self-Adhesive Vinyl Stickers and are a great alternative to wallpaper, paints, or stencils.
It's extremely easy to apply on your walls or any flat and smooth surface.
Simply peel those pre-cut pieces of wall stickers off from the backing paper and apply them to the desired area. Refer to the finished design shown in between the sheet and follow the numbers mentioned on the pieces to form the desired pattern.
After pasting the wall stickers on your wall, press firmly along the border and remove air bubbles if any. Repeat, if required. Do not apply on wet walls.