They are removable and do not leave any marks at all on the wall. As they are reusable you can re position them again and again!
The largest Butterfly measures 16cm high x 23cm wide
The Largest Ladybug measures 18.5 cm x 13.5cm
All the decals come in NEW retail packs. The packs are wrapped in cellophane and come with instruction, these make a great gift.