【BALL BEARING DOOR HINGES】These high quality ball-bearing hinges are made of extruded solid brass, which is known for its resilience, durability, and beauty. Ball bearing hinges are designed to handle heavy doors, and we are certain that this door hardware will beautify your doors and your home for many years to come. 【QUALITY WORKMANSHIP】ensure seamless and smooth closing of your door. The solid brass is highly resistant to outdoor rust, and the pin is made of rust-free stainless steel to ensure a smooth movement. 【MODERN ELEGANT】 Expect to wow your guests with these extruded brass hinges! The hinges are so well made and tight, you will think they are handcrafted. Whether you are using the hinges for a casual, modern space or a classic elegant one, you will not be disappointed! 【SIZE】4inch-80*155MM; 5inch- 90*180MM 【RESIDENTIAL COMMERCIAL】The hinges are designed for both residential and commercial uses. Use anywhere you need a strong, load-bearing hinge with increased performance that will withstand the test of time., Manufacturer: Shun Yingtong