Features: Shock absorption: EVA shock absorbing gasket is used at the bottom and thickened material to effectively protect the wall. Adjustable: Rotate to adjust the height, you can freely adjust the length according to your needs, easily change the stability of the bed frames in minutes. Anti-Shaking: Effectively reduce noise and protect your walls from damage, this headboard stabilizer can prevent the headboard from shaking. Simple installation: tear off the white protective film, find a suitable position to paste and fix, and the bottom is firmly attached and not easy to loosen. Wide range of uses: The adjustable bed frame stabilization tool can be used in many places, as long as it is unstable or easy to shake. Such as beds, cabinets, chairs, sofas and other items used against the wall. Package Includes: 1x Bed Stabilizer Specifications: Material: Plastic S Size: Approx. 4.2~4.7cm/1.65~1.85inch for M Size: Approx. 5.9~6.7cm/2.32~2.64inch L Size: Approx. 7.7~9cm/3.03~3.54inch Xl Size: Approx. 9.5~11cm/3.74~4.33inch note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.