[High-quality material] Our hinges are made of high-quality stainless steel, which is hard, sturdy, rust-resistant, and corrosion-resistant, making them extremely safe and durable for long-term use. Their surface is brushed, making them extremely wear-resistant and smooth. In addition, these stainless steel hinges are waterproof and can be used in humid environments. Corrosion-resistant, they are elegant and durable. [Package Contents] You will receive four invisible hinges and their mounting screws. The hinges measure 8 cm x 3 cm and have a thickness of 0.2 cm. In addition, the 180-degree center folding hinges are safer to use. [Easy installation] Our furniture hinges are extremely easy to install, and we provide the right mounting screws for your needs, saving you the trouble of searching for suitable screws. Each small folding door hinge has six holes. Simply insert the corresponding screws and tighten them with a screwdriver, which is very convenient. Tip: If necessary, you can also use a drill before tightening the screws. [Elegant and refined design] Our steel folding hinges feature an elegant and sophisticated design. Their smooth edges and surface add a touch of sophistication to your interior, making them both practical and aesthetic. A wise choice. [Multifunctional folding table hinge] Made of high-quality materials, this hinge is rust-resistant and durable, making it an ideal choice for all types of folding furniture. Versatile, it adapts to different scenarios: folding table, desk, jewelry box, etc., sewing machine table, drawer table, etc.