Key Features - Secure Baby Safety Bed Rail - Keeps your child safe in bed while sleeping, preventing accidental falls. For enhanced stability and security, purchasing two or three sides is recommended. Independent Vertical Lifting - Each side of the bed rail can be lifted vertically and independently, allowing for easy access with one hand. A child safety lock provides double protection to prevent kids from opening the rail themselves. Adjustable Heights & Seamless Design - The bottom bar features 4 adjustable height levels (31.5" to 37") to accommodate mattresses from 2" to 9" thick. Its seamless design ensures the rail presses firmly against the mattress, eliminating gaps where children could get stuck. Kid-Friendly Materials - Made with breathable mesh fabric for proper ventilation and easy visibility, along with a safe-to-bite fabric cover for added peace of mind. The top rail is cushioned with anti-collision sponge to prevent injuries. Easy Installation & Maintenance - Simple to assemble with step-by-step instructions. Compatible with most bed types, including embedded, platform, and slatted beds. The zippered cover is machine washable and easy to clean. Specifications - Color - Gray Material - Metal, Fabric, PP Overall Dimensions - 59" x 18.5" x 31.5"-37" (L x W x H) Applicable Mattress Thickness - 2"-9" Net Weight - 8 lbs Box Quantity - 1 (may vary by batch)