Providing you peace of mind as your little one makes the move to big kid bed, this safe and sturdy Bennington Elite Toddler Guardrail from Delta Children extends the life of your crib by transforming it from a crib into a secure toddler bed. This rail works with the following Delta Children cribs: Bennington Elite Curved 4-in-1 Convertible Crib and Bennington Elite Sleigh 4-in-1 Convertible Crib.