These decals will adhere to most smooth surfaces but we recommend avoiding wash & wear types of paint that are designed to repel dirt, as this can also cause vinyl to not adhere correctly. If you would like to try a sample before you buy, please contact us. Dotty Wall Decals kit includes: 1 Sheet that contains 32 individual dots in your chosen colour. Each dot measures 5.2cm (2″) The dots are individually cut so you can choose how many you’d like to use and create a custom design to suit your space. Want to personalise this kit? Wall Letters let you add your child’s name or quote to this Wall Decal kit. An easy way to personalise your kid’s room.