A Good nights rest! That is what you and your little one need. Keep your little one from accidentally rolling off the bed while sleeping with Safety 1st Bed Rails. The top-of-mattress design eliminates potentially dangerous gaps between bed and bed rail. It provides a full 8″ of security above the mattress; fitting easily on a twin, full or queen-sized mattress with no loss of height. You can set the bed rail up quickly, just 3 minutes from box to bed with no additional tools required. Once set up, you can confirm with a quick glance at the SecureTech™ indicator that everything is locked into the proper position, and that your little one is ready to drift safely off to dreamland. Features: -Secure Bedrail eliminates potentially dangerous gaps between bed and bed rail -8" of Security above the mattress -SecureTech Red/Green visual indication for secure locking -12-18" Height provides sufficient security above mattress (4"-10" thick) -Safe Length of 36" good for a growing child -Inbuilt handles for convenience -3 Minute Installation -No tools required -Adaptable to twin, Full and Queen mattresses About the brand Always prioritizing security, Safety 1st has a fitting name and offers a full range of child-resistant home security products and a variety of affordable quality items such as car seats, strollers, parks, table accessories, toddler furniture and more. Reliable and designed to make your family's life easier and safer, Safety 1st items are to be trusted.