SAFE MATERIAL for babies and children; our corner covers are made of soft and resistant silicone, free of BPA; Its soft and flexible padding protects your baby from any hit with a corner You can put them in any piece of furniture with corners located in the living room, dining room, kitchen and rooms of your home EXTRA STRONG ADHESIVES on corner protectors stick firmly to any surface; They do not leave a trace of glue, nor do they damage the surface once you want to remove them To INSTALL THEM, you just have to clean the surface, stick the stickers on each corner of the protector, peel off the protective film from each sticker and put the protector on the corner; press each side for 30 seconds