High Quality Materials: Our base adjustment screw is made of high quality ABS plastic. It will not damage the floor and generate no noise when in use. Threads are durable stainless steel, M8 threads. The posts are electroplated to ensure they won’t rust and can be used for a long time. Adjustable angle and height: our furniture jack feet have a ball joint base, which can tilt the base for you help maintain balance on uneven ground, and you can also adjust any height of the base according to your needs. Anti-noise and protect the floor: Furniture Legs Heavy-duty adjusters reduce frictional resistance, so as to effectively protect the floor during movement, prevent scratches and reduce high-pitched noise. Large load-bearing capacity: Adjustment screws can bear a weight of up to 300 kg, suitable for heavy furniture or machinery to move easily along the floor, thus avoiding damage to the floor by lifting the machinery. Multi-use: the adjustable furniture screws are suitable for all kinds