Celtic Knot Centrepiece Decorative Patterns Wall Stickers Home Decor Art Decals available in 5 Sizes and 25 colors Medium Black Supplied ready to use with instructions. Easy to apply to any smooth clean surface. Easy to remove without leaving any sticky residue. Available in 5 sizes. Please select a size using the options above. Sizes in centimetres. Selection of 25 colors, please select a color using the options above, our colour swatch is located in the image gallery. All of our stickers and murals come complete with the azutura satisfaction guarantee.