This is a heavy-duty extruded aluminum lock with tamper-resistant single hex security screw and wrench for use on metal horizontal sliding windows. Securely locks window in closed or ventilating position and helps prevent accidental opening of window by child. It will fit on any track 1/4 in. or smaller.

• Can be used of left or right sliding windows with a track 1/4 in. or smaller
• Securely locks window in a closed or venting position
• Can be used as a child safety lock
• Easy to install
• Package of 2