[Material]Adjustable threaded bed frame anti-shake tool made of premium metal, which is firm and reliable and can withstand heavy pressure. [Size]The package includes 4pcs anti-shake tool. Measure the distance between your shaking furniture and the wall, then choose the right size Bed Frame anti-shake tool by adjusting screw number. This fits 56mm-76mm. [Functions]Avoid shaking the furniture, effectively reduce noise and EVA shock absorption protect the wall from damage, and protect the wall from damage and prevent bedrock from shaking.prevent shaking, calm mood. Moving bed would not affect your sleep and Improve the quality of your sleep. [Applications]The adjustable threaded bed frame anti-shake tool can be used in many places, as long as the center of is unstable or easy to shake the object can be used. Such as bed, cabinet, chair, sofa and other objects used against the wall. Material: stainless steel Size: 56mm - 76mm Color: Silver Note: Measure the distance between your shaking furniture and the wall, then choose the right size Bed Frame anti-shake tool by adjusting screw number. Package includes: 4pcs anti-shake tool Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.