Product Features -1- Completely saves your kids from Door Injury 2- 100% Non-Toxic Silicone, Very Soft, Flexible 3- Fits all door sizes 4- Heaviest Door Slams 5-No installation Required Caution & Tips- 1-This product is not a toy, and not a substitute for adult supervision 2-you may want to discontinue the use of product after your child has reached an age where he and she can remove it alone.