The Kids R Us Double-Sided Hideaway Bedrail makes any bed a safe place for your little one. With its super sturdy all-steel construction, this bedrail comes equipped with the Gap Guard feature that prevents your child from sliding between the mattress and bedrail. Kids R Us Double-Sided Hide Away Bedrail: Double-sided Hide Away feature makes any bed a safe sleeping place for children 18" sidewall accommodates thick mattresses Super sturdy all-steel construction Design allows bedrail to tuck beneath the mattress when not in use Guard Gap feature prevents child from sliding between mattress and bedrail Intended for children ages 2 to 5 years Easy to clean, durable nylon fabric Extremely easy to set up with no tools required