Condition: 100% Brand New Item Type: Threaded Bed Frame Style: Without Screw, 1PCS Screw, 2PCS Screw, 3PCS Screw(Optional) Material: Metal+EVA Color: As shown in the picture Size: Approx.4x3.6cm / 1.6x1.4in(Upper Diameter x Bottom Diameter) Without Screw Height: Approx.3-4cm / 1.2-1.6in 1PCS Screw Height: Approx.5.5-7cm / 2.2-2.8in 2PCS Screw Height: Approx.7.5-10cm / 3.0-3.9in 3PCS Screw Height: Approx.9-13cm / 3.5-5.1in Weight: Approx.45g~100g/1.6oz~3.5oz Instructions: Measure the distance between the swayed furniture and the wall, then select the appropriate size of the adjustable threaded bed frame anti-shake tool to secure it in place. Package List 1 x Screw 1 x Base 1 x Gasket 1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1It can effectively prevent shaking, calm mood and improve the quality of your sleep. 2EVA cushion can effectively reduce noise and protect the wall from damage and prevent bedrock from shaking. 3Easy to install, our threaded slides are screwed into place and can change your bed frame in minutes to make your bed more stable. 4Great for gravity center unstable or easy to shake the object, such as bed, cabinet, chair, sofa, refrigerator, washing machine and other objects used against the wall. 5Our products are available in 4 different height ranges, you can match the size you need according to the actual situation. 6It is made of high quality metal material , which is firm and reliable and can withstand heavy pressure.