What is this?Sliding window locks are used to secure sliding windows, limit and control the width of window openings, prevent over-opening, and provide customizable ventilation. Suitable for a variety of vertical or horizontal windows in residential, office, and commercial buildings, providing additional protection.What will I get?The package contains 10pcs limit blocks and 10pcs screws. The limit blocks are made of nylon and the size is 58mmx12mmx19.7mm / 2.3inchx0.5inchx0.8inch (L*W*H); the screw size is 4mmx17mm / 0.16inchx0.67inch (Dia*L)Are there any advantages of the product?Security sliding window stoppers are made of durable nylon material and equipped with a sturdy solid column, which is strong and stable, with excellent hardness and impact resistance.
eBay