High quality materials: Our base adjustment screw is made of high quality ABS plastic. It will not damage the floor and generates no noise during use. Threads are durable stainless steel with M8 sizing. The posts are electroplated to prevent rust and ensure long-term use. Adjustable angle and height: Our furniture jack legs feature a ball joint base that allows tilting to maintain balance on uneven surfaces, and enable height adjustment as needed. Anti-noise and floor protection: Sturdy adjustable furniture feet reduce friction, helping to protect floors from scratches and minimize noise during movement. High load-bearing capacity: Each adjusting screw supports up to 300 kg, making it suitable for heavy furniture or machinery, allowing smooth floor movement without lifting. Versatile use: Adjustable furniture screws are compatible with various steel furniture including tables, stools, chairs, mechanical equipment, fitness equipment, brackets, TV cabinets, shelves, and beach chairs. Ideal for DIY applications. Height adjustment: Easily adjust the base to any height and level all feet evenly. Features: Designed to stabilize furniture or machinery with adjustable screws. Offers adjustable angle and height for improved balance on uneven surfaces. Supports up to 300 kg. Reduces noise and protects flooring. Suitable for a wide range of steel furniture and equipment. Product Name: Uni-Fine Adjustment Screw Material: Steel Color: Black Base Diameter: 60mm Height: 50mm Package Includes: 4 x Adjustment Screws Note: Measurements are manually taken; slight variations of 13 cm may occur. Color may vary slightly due to lighting and screen settings. Actual product received may vary slightly from images.