Our bed rail bases are U-shaped for a larger force area and less slippage. We are committed to putting your child's safety first. We use international safety standards, crib guardrail materials and fabrics undergo strict safety certification, and are made of sturdy, non-toxic, chemical odor free materials to provide the best protection for your little one and ensure a healthy growth! The bed rails are made with one-touch buttons that can be easily folded and swung. Upgraded elevation design allows you to adjust the height at will to accommodate mattresses of different thicknesses. When getting in and out of bed or removing sheets, the swing function allows the bed rail to turn down and out of the way.