The Baldwin Reserve 9BR3524-116 Crystal Lifetime Satin Passage Knob is a traditional style door knob made of brass and glass. It features a square shape and comes with hardware for installation. The knob is suitable for room/passage doors and balcony/terrace doors, and is backed by a lifetime manufacturer warranty. With its satin finish and high-quality materials, this door knob from Baldwin is a stylish and durable addition to any home.