Features: Crafted from premium steel, these 4 4inch white window hook lock feature a 6mm thickened rod and not coating for outstanding durability and long service security against forced entry. The smooth design with countersunk screw holes prevents hand scratches while the unique end hook mechanism ensures window/door stay firmly locked even under external pressure. Ideal for households with curious children/pet or privacy awake residents needing reliable defense against accidental openings and unauthorized access. Perfect for securing sliding window during storms, maintaining bathroom confidentiality, or preventing balcony door from rattling in windy conditions. Engineered with reinforced steel construction, these security window latches combine industrial performances with residential friendly installation for worry without home defense . Specifications: Material: steel Length: about 100mm/4inch Package Includes: 2 Pack Window Lock hook note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.