This safe and sturdy Daybed/Toddler Guardrail Kit from Delta Children provides you peace of mind as your little one makes the move to big-kid bed. It extends the life of your crib by transforming it from a crib into a secure toddler bed or daybed. Delta Children Daybed/Toddler Guardrail Kits are not universal, they convert select cribs produced by Delta to a toddler bed and a daybed; refer to your crib’s instruction manual to ensure compatibility with W213725.