A lockset is a complete locking system, including knobs, plates, and a locking mechanism, especially for a door. At Home Hardware Plus, we want to make sure that you have the best Grade 1 Knobs on the market for the best price. These knobsets are designed for use on heavy duty commercial door applications. Fitting both left and right handed doors, these ball knob locksets are perfect for any business that has a lot of foot traffic in and out action. With these Grade 1 Knobs you’re sure to have confidence in your doors security.