Reduce noise and shake: With our headboard stabilization, you can do whatever you want on the bed without shaking or noise. The anti-shake tool of the bed to reduce noise is useful. Adjustable height: The material is metal, which is firm and reliable and can withstand strong pressure. The length of each headboard support can be adjusted freely, and the number of adjustment screws can be reduced or increased. Easy installation: The side of the base with double-sided tape is glued to the head of the bed, then hand tighten the side of the EVA mat and adjust it to the right length until 'it is close to the wall. Wide range of uses: Can be used in many places, as long as the center of gravity is unstable or easy to shake, the object can be used. Such as bed, wardrobe, chair, sofa and other objects used against the wall. Package includes: Pack of 4 47-64mm anti-shake tools that have been assembled. You don't have to reassemble them. If you need shorter ones, please unscrew the screws and reassemble. Functionality: 1. Our threaded slides are screwed in to transform your bed frame in minutes, making your bed more stable. 2. This adjustable threaded bed frame anti-shake tool can be used on beds, wardrobes, chairs, sofas and other items used against walls. 3. We recommend using 4 anti-shake tools on the same plane, install 2 adjustable bed stabilizers each at the top and bottom of the headboard, first tighten the lower bed shake stopper against the wall, then tighten it upper headboard stabilizer against the wall. How to install: 1, metal base with self-adhesive, fixing to furniture 2, the EVA pad hits the wall 3, using the screw to adjust the width between the cabinet and the wall. Material: Metal, EVA Color: Black Length: 47-64 mm (1 screw) Package including: 4 X Anti-shake tool for adjustable bed frame Warm notice: 1.Measure the distance between your shaking furniture and the wall before purchasing, then choose the appropriate size. 2.Due to manual measurement, there might be some slight differences, sincerely hope you can understand! Thank you!