1. Durable Material: Our casement window handles are crafted from quality aluminum alloy, offering exceptional corrosion and heat resistance for longlasting use without rust or wear. This durability makes them an ideal replacement for UPVC windows and doors, meeting modern household demands. 2. Safety Lock Design: Featuring a builtin locking mechanism, these window handles significantly enhance safety by preventing accidental openings. This design is especially beneficial for families with young children, ensuring windows remain secure when closed. 3. Easy Installation: Designed for simplicity, our window handles require only drilling holes in the correct positions, aligning, and securing the screws. This userfriendly feature allows DIY enthusiasts to quickly upgrade window safety, saving both time and effort. 4. Wide Applicability: These aluminum alloy window handles are compatible with UPVC windows and various sliding doors and windows. Their universal design caters to diverse household needs, boosting overall safety and making them a choice for replacing outdated handles.