The BreathableBaby Mesh Liner for Portable Cribs and Cradle Cribs is Safer than a traditional bumper. This product was originally designed by parents in Minnesota to prevent and protect their daughter's arms and legs from getting stuck in between crib slats. In addition to providing safety and comfort, the Breathable Mesh Crib Liner helps prevent suffocation. The Breathable Mesh Liner is approved for sale in every state across America due to its safety unlike traditional bumpers. This product is designed to work with most portable crib and cradles. Installation of product on crib is simple. Fasteners and ties ensure mesh stays in place. The BreathableBaby Mesh Liner is Safer for Baby. Peace of mind for you! The BreathableBaby Mesh Liner is recommended for use from birth to 3 years old. It is machine washable, fast drying, hypoallergenic, portable and durable.