Use this locking channel with John SterlingBK-1136 (no window guards are included, this is just the locking channel), BK-1136L (not included) and BK 1136-EL(not included) off-white window guards to convert a fixed window guardto a swing open, lockable window guard. There is a locking hole in the channel. Use the padlock hole for either a safety release pin (not included) or a padlock (not included). Use one locking channel per window guard (not included). Must be used at time of installation of the BK-1130 series window bars. Note: No window guards are included. This is a locking channel only. Price given is for a single unit.