The mattress retainer bars and bed retainer bars are essential for those who want to stop their bed from sliding. These non-slip bed frame grippers and mattress stabilizers are easy to install and provide a secure hold on your mattress. With these mattress holders in place, you can ensure your mattress stays put, providing a stable and comfortable sleeping environment. Features -Color:Black -Material:Iron -Size:15.70X15.70X13.70cm/6.17X6.17X5.38in -Stable support: stops mattress from sliding, ensuring a stable and secure sleeping surface -Designed for wood frames: specifically made for platform beds with wooden frames, ensuring compatibility -Position adjustment: adjustable to keep the mattress aligned with the bed frame, enhancing comfort -Simple installation: easy to install with a straightforward process, making it convenient and quick -Universal solution: suitable for all mattress types and bed frames, providing a versatile and reliable mattress securing option Package list: 2 x Mattress Retainer +8pcs screws