The Concord Baby Universal Toddler Guard Rail is designed to convert several Concord Baby cribs (sold separately) into a toddler bed. This rail is compatible ONLY with the Aria, Carson, Cleo, Devon, Metro, Sara, Dover, Dylan, #375 and #550 cribs by Concord Baby. This solid wood rail provides a safety barrier for your toddler. The attractive railing helps prevent your toddler from falling out of bed when sleeping, while allowing them to safely and easily climb out in the morning.