FPL custom profile cylinders are configured in the U.S. to your exact specifications, engineered for precision. They can be made in any offset size, down to the exact millimeter. Even cylinders over 8" long are no problem (even higher than 100mm on each side of the cam). Choose from Single, Double Keyed, Privacy, or Half Cylinders. FPL profile cylinders are available with Schlage or Yale keyway, with 360-degree full rotation or 90-degree quarter rotation. Some sizes are also available with 8 pin or 16 pin security options.