Commercial 2 3 4 in. Satin Chrome Heavy Duty Classroom Keyed Entry Door Lever 6x36 LVP Complete Set: Includes 4 in matching 314846561 Complete Set: Includes 4 in matching backsplash and undermount oval biscuit sink with overflow wall mounted design makes this item ideal for areas with limited space Posts constructed from zinc die cast with brass shell and roller for lasting quality Designed to stand up to the wear and tear of commercial use Peace of mind with limited lifetime warranty The classroom function has a cylinder on the outside of the door so teachers cannot be locked out from the inside of the classroom Installation Instructions Cross bore diameter (in