Features 1. High security lock sliding window tool 2. Instantly lock sliding windows and doors - no drilling or tools needed 3. Place on window or door track & tighten thumb screw; lock shut or allow partial opening 4. Prevents window from being forced or pried open from outside; easy removal and reusable 5. Fits most vertical or horizontal sliding windows & many sliding doors to 2.5-4cm(Approx 1''-1.57'') track-rim width(Adjustable) 6. Material: Iron+zinc alloy, rubber 7. Size: about 6 x 4 x 3cm/2.36 x 1.57 x1.18in 8.Color:brown,silver Package Included 1 x Sliding Window Safety Lock