Wonder Bumpers are the safe sleep solution. Scientifically proven to be safe, the Wonder Bumpers: Increase airflow and reduce CO2 re-breathing. Eliminate suffocation and entanglement risk. Protect baby"s head and body. Inhibit toddler from climbing out. Keeps limbs safely inside Made to fit ANY crib, Wonder Bumpers sleek, vertical design effortlessly zip on your crib in a downward motion ensuring babies do not have access to the pull. With no unsafe ties they are super easy to use and easy to wash. 24 pack includes: 24 reversible Wonder Bumpers.