Here's a rewritten product description based on the provided information: --- Our toddler bed rails are designed with safety and convenience in mind. Made from high-quality polyester, these bed rails are tailored to fit king size toddler beds measuring 78.7x78.7x74.8 inches. To ensure the best fit, we recommend measuring your bed dimensions before purchasing. These bed rails feature a 3-sided design with an ultra-stable 4-point frame, providing enhanced security for your child. The integrated crossbar forms a secure enclosure that significantly reduces the risk of accidental roll-offs during sleep. The dual-button child lock system ensures that the bed rails cannot be accidentally opened by your child, while being easy for adults to operate. This design allows each side to be used independently for convenient access. The bed rails offer a seamless fit and can be customized to fit various mattress thicknesses up to 12.2 inches. With 30 adjustment positions, you can achieve a perfect, secure fit for your specific mattress. Constructed from heavy-duty steel, the bed rails offer exceptional structural integrity and maximum stability. This prevents wobbling or buckling, ensuring long-lasting, safe support for your child. The bed rail guard is made from durable and breathable mesh fabric that is tear-resistant and comfortable. The mesh is designed to be snag-free, protecting your child's delicate skin and ensuring long-lasting durability. For easy operation, the bed rail can be adjusted up or down with just one hand. The precision-engineered mechanism allows for quick and hassle-free adjustments, making it perfect for busy parents and those late-night comfort checks. --- This description maintains the original meaning while rephrasing the content and omitting special symbols.