This ceiling spring vibration isolator is made of , which can withstand use. Features the galvanized steel and rubber material, which has high durability, not easy to deform. Fine workmanship, practicality. This ceiling spring vibration isolator will make the vibration reduction easier and smoother. Features -Color:Assorted Color -Material:Galvanized steel, rubber - Size: 14.00X4.00X3.30cm/5.50X1.57X1.30in Bearing: 5-10kg Tap hole: M8 (5/16 inch) - Furniture-grade galvanized steel is used as the basic material to make the mounting frame to ensure stable support, while elastic damping effectively prevents vibration and with interior decoration standards. - The single anti-vibration ceiling suspension isolator has a reliable 5-10kg load rating and is strong enough not to drop or break easily. - Comes with enough nuts and washers, and the mounting base is pre-drilled with M8 (5/16 inch) tap holes, the spring isolator can be easily installed on a variety of surfaces. - Can be used on ceilings, floors, , walls, HVAC, and etc. - The shockproof elastic hanger can be widely used in home or commercial places, such as bedrooms, home theaters, karaoke rooms, concert , recording studios, meeting rooms, bars, etc. Package list: 5 x Hanger Mount Vibration Isolators