Stops bed rocking and reduces noise for a quiet, comfortable sleep environment. After professional testing, it reliably prevents bed movement and helps improve sleep quality. Height adjustable design. 12 headboard stoppers included. Each stopper adjusts from 77 to 112 mm, suitable for most beds and other furniture. construction. Metal base, self adhesive tape, and EVA pad provide strength and durability, effectively reduce noise, increase stability of bed or furniture, and protect walls from damage. Easy to install. Set of 12 installs quickly by gluing the base to the wall with double sided tape, then screw by hand into place. Stops your bed from shaking in minutes. Compatibility and uses. Designed to fit most beds and furniture thanks to the adjustable height, with 12 pieces to cover multiple positions under the headboard. Practical for homes, dorms, or shared spaces. Use scenarios. Stabilize a rocking wooden or metal bed with a headboard to restore a quiet sleep environment. Fix wobble in bunk or loft beds where movement transfers to adjacent furniture or walls. Stabilize freestanding wardrobes, bookcases, or sofas near the wall to prevent wall scuffs and reduce noise.