[DETAIL] 4 Sets Window Safety Lock Aluminum Alloy Sliding Lock Sliding Door Anti-theft Lock Adjustable Buckle Window Stopper Lock for Home Features: ? Stylish design, 100% brand new and high quality! ? High security lock sliding window tool ? Instantly lock sliding windows and doors ? No drilling or tools needed ? Place on window or door track and tighten thumb screw; lock shut or allow partial opening ? Prevents window from being forced or pried open from outside; easy removal and reusable ? Fits most vertical or horizontal sliding windows, many sliding doors to 2.5-4cm track-rim width Specifications: ? Name: Window Safety Lock ? Colour: Black/Brown/Silver ? Size/Dimension(W x L x H): As the picture show ? Material: Metal/Aluminum Alloy Package Included: 1 Pack ��Stopper Safety Lock Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2.Due to different manual measurement, please allow slight size difference. Service: 1. Factory direct sales, large quantity discount 2.We will ship out your order(s) within 24 hours-48 hours in our store working hour. Reminders: Please check your window track height and track thickness before buying,make sure the track heights more than 1.22 cm/ 0.48 inches, track thickness no more than allowable max size, not applicable to the middle track of the window. [ATTRIBUTES] - Hign-concerned Chemical: None - Handle Direction: Left Push - Lock Type: U Shape Lock - Hign-concerned Chemical: None - Handle Direction: Left Push - Lock Type: U Shape Lock - Origin: Mainland China - Certification: None - window lock safety: Stopper Safety Lock Sliding Move - window lock sliding: Window Lock - Hardware Accessories: Door Sash Lock Protection - safety lock window: window latch - Window stopper: Safety Lock - Sliding Sash Stopper: Sliding Window Lock - Cabinet Lock Straps: for Vertical & Horizontal Sliding Windows Doors - Anti-theft Lock: Adjustable Security Window Lock - Adjustable Buckle Windows Stopper Lock: Child Safety Limiter