Greay fun helping my 3 year old Granddaughter stick these butterflies on her bedroom wall to compliment her duvet, pillow, banners etc. - all butterflies. They were easily put on and easily removed when we got the pattern wrong, after that they have stayed on the wall grand. Also used some on her wardrobe, be careful not to overdo. Would suggest sketching a plan or marking in pencil where the butterflies are to be placed before putting them on the walls etc..