As your toddler keeps growing, so will their need for a "big kid" bed. Let the transition from crib to bed be simple with the KidCo Telescopic 2-Pack Children's Bed Rail. This bed rail is great for toddlers ages 2 and up who are eager to finally sleep in their very own "big kid" bed. This 2-pack of bed rails fit perfectly on twin or king-size mattresses. Its steel base and mesh material is durable and protective for toddlers who like to toss and turn throughout the night. Protect your toddler from accidents and make the transition to a real bed a safe and easy experience with the KidCo Telescopic 2-Pack Children's Bed Rail.