Features: 1.Improve Sleeping Quality:Stabilize your bed even if there is any gap between bed headboard and wall. Ensure a good sleep without shaking even when tossing and turning all night. 2.Wall protection:EVA cushion effectively reduces noise and protects your wall from damage. Also prevent the head of the bed from becoming wobbly. 3.Adjustable Distance:We offer 4 sizes and you can adjust their length by screwing to universally fit for the gap. 4.Easy to install:Just screw into place and transform your bed frame in minutes to be more stable. 5.Wide Applications:Can be used in many places such as bed, door, cabinet, chair, sofa and other objects. Notice: ①Actual color may be slightly different from the image due to different monitor and light effect ②Please allow 1-3cm deviation due to manual measurement Description: Material: Hardware EVA Size:Height S:3-4CM M:4.7-6.4CM L:6.7-8.7CM XL:8.4-11CM Package List: 2/4 x Anti-shake Tool