This Schlage Commercial Grade 1 Classroom Lock is the gold standard for safety. It’s top notch hardware that’s as attractive as it is durable. Schlage is known for it’s great customer service. These locks are worth every penny for the protection and peace of mind they will bring. Schlage recommends they be keyed when installed. Please see my other items listed as I have a variety of Grade 1 Schlage locks to offer. Thanks for looking!