This versatile crescent is crafted from practical stainless steel, offering exceptional strength and resistance to wear and tear. Its universal design makes it suitable for a wide range of applications, from residential to commercial settings. The 's sleek appearance and robust functionality make it a valuable addition to any security system. Features -Color:Silver -Material:Stainless steel -Size:7.40X3.00X2.40cm/2.91X1.18X0.94in ( Hole spacing: 5.5 cm) -Size:3.00X2.50X1.80cm/1.18X0.98X0.71in (Hook, Hole spacing: 2.3 cm) -Dependable : the stainless steel universal crescent with hook provides a dependable locking mechanism for doors and windows, ensuring safety -Universal fit: compatible with various doors and windows, including wooden, aluminum alloy, and plastic steel, versatile for different environments -Robust build: made from stainless steel, it ensures durability and performance, resisting damage -Simple installation: quick and straightforward to install, no need for tools, making it accessible for everyone -Increased protection: adds an extra layer of security by preventing windows from being forcefully shut, enhancing home safety Package list: 2 x 2 x hooks 8 x screws 4 x expansion bolts