Schlage Commercial Schlage ND70LD TLR Heavy Duty Classroom Lever Lock, Less Cylinder Schlage ND70LD TLR Grade 1 Classroom Lock, Tubular Lever, Less Cylinder, Non-Handed Function: Classroom - ANSI F84 • Outside lever locked and unlocked by key.• Inside lever always free... $452.57 Price: $802.00 Quick Add