Reduces Noise & Vibration: With our fixed vibration headboard stabilizer, you can do whatever you want in bed without vibration or noise. Noise reducing bed stabilizer tools are helpful. Scope of delivery: 4 anti-vibration tools, 2 large + 2 small, two large for 77-90mm clearance, two small for 42-47mm clearance Full Protection: The anti-shake tool of the adjustable threaded bed frame effectively reduces noise and protects your walls from damage. This headboard stabilizer prevents the head of the bed from moving Easy to install: our headboard stabilizers do not require drilling into walls or headboards. Stick the metal base of the anti-shake bed tool to the head of the bed with double-sided tape, then turn the cushion by hand until it is against the wall. Wide range of applications: This adjustable threaded bed frame anti-shake tool can be used in many places, as long as the center of gravity is unstable or easy to shake, such as bed, cabinet, chair, the sofa and other items in the room. wall. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.