The corner protector ensures that your little one does not bump into sharp edges, such as those on tables or bookshelves. It is attached with self-adhesive tape. The inside is hard, allowing it to adhere firmly to the surface, while the outside is rounded to prevent your child from getting hurt. The corner protector is made from 100% bio-based material to reduce the use of fossil fuels and greenhouse gas emissions. Your child can safely chew on it without ingesting harmful substances, as the material is food-safe. The packaging is 100% biodegradable and Cradle to Cradle certified, meaning it can decompose naturally without leaving harmful substances that could damage our soil. By using the corner protector, you are protecting both your child and the environment. - 4-pack.