Review on Window Alert - Anti-Collision Stickers for People and Bird Strikes on Window Glass - Set of 39 Translucent/Dusted Tree Leaves Decals by Helena Cheatham

These anti-collision stickers cannot be removed for window cleaning. If you try to peel them off, they will crack because they are strongly attached to the glass. They also leave residue that needs to be scraped off. I thought they were the same as the others I have, they are vinyl and easy to remove. Also, many of the leaves are so small that they don't seem to be visible to birds. I would not recommend this product. I admit they are called "stickers", which they are. So if you want to wear them and leave them forever, this could be the product for you.