We use the corner protection for three weeks on our sofa table with glass top. Our little daughter (10 months) has discovered after a few days, that protection can 1. ansabbern at your table and into your mouth and 2. can pretty easily removable if you put on just tightly enough to the mouth. Our conclusion therefore: Unfortunately, only one star, the there for beautiful design. Unacceptable for us, however, that the protection solves easily (or unsuitable for glass tables is ??) and the corners are so small that they easily fit into a baby and toddler mouth and can be swallowed. Without air holes is as death. So we can not leave them unattended, especially since it really great is this "game" our daughter.