These mattress holders are Suit for any bed frame, making a Sturdy Mattress Gripper to prevent your mattress from sliding. The non-slip grippers are easy to install and work quick on metal frames, making your mattress stays put. Ideal for maintaining a neat and organized bedroom, these accessories enhance your overall comfort. Features -Color:Black -Material:Iron -Size:12.00X9.50X5.00cm/4.72X3.73X1.97in -Secure mattress grip: holds the mattress , eliminating unwanted movement during use -Easy setup: no tools required; just position the stopper and enjoy instant stability for your bed -Iron build: crafted with sturdy materials to make durability and consistent performance over time -Wide application: works with metal, wooden, or upholstered bed frames for adaptability -Mattress Gripper design: small and unobtrusive, it blends with your bed setup without taking up extra space Package list: 4 x Mattress Gripper 8 x Screws