Help your child transition easily from the crib to a bed with the Secure Click Top-of-Mattress Bed Rail by Safety 1st. The Secure Click features a top of the mattress design that eliminates potentially dangerous gaps between bed and bed rail, helping both you and your toddler to feel more secure. The rail removes easily for bed making and the SecureTech indicator lets you know with a glance that it's locked back into the proper position. The Safety 1st Secure Click Top-of-Mattress Bed Rail features: Removable bed rail panel allows for easy bed-making Top-of-mattress design eliminates potentially dangerous gaps between bed and bed rail 5 minutes from box to bed - no tools needed Fits twin, full and queen sized mattresses SecureTech indicator lets parent know with a glance that everything is locked in proper position See-through mesh panel and neutral color complement any bedroom d cor Protects with a full 40 inches of length and 10 inches of height from top of mattress Easily adjusts to fit mattresses 4-10 inches thick Angled panel design encourages child to sleep in center of bed