【Prevent Mattress Sliding】: Our anti slip bed frame grippers are designed to hold your mattress in place and prevent it from sliding. If you're tired of constantly adjusting your mattress, these grippers are the great solution for you. 【Universal】: These adjustable nonslip mattress baffles are universally compatible and can keep any mattress topper from sliding. They're suitable for bed frame with a tube width ranging from 0.3 to 1.38 inches. 【Material】: Made of quality, heavy duty thick steel, our adjustable bed mattress retainer bars are built to last. 【Easy Installation】: With our easy to install design, these mattress holders can be set up in no time without the need for additional tools. 【Package Contents】: Each package includes 2Pcs of our and non slip mattress gaskets that effectively prevent mattresses from sliding off the frame. Size Chart: 3.75inchx2.58inch Package Includes: 2 Non Slip Mattress Grippers Note: Please allow slightly errors 1-2cm differences due to manual measurement.