Keyed IC Cylinder with 2 Keys - Fits various "Yale" Style IC Housings. Includes 1 core removal/insertion key per group of cores. We normally supply Yale GA cylinder - other key sections may be available upon request - please inquire. Keyed Alike cylinders applies for 2 or more cylinders. Keyed Different Cylinder supplied with 2 keys and 1 control key each. Master Keyed Cylinders supplied with 2 keys and 1 control key per group. If ordering unkeyed cylinders, you will need to make arragements to get these keyed local. Unkeyed cores will NOT come with a control key.