【Premium Material】 This door jammers for inside doors constructed from premium grade zinc alloy with a corrosion-resistant white powder coated finish, this pvc door lock sturdy sash jammer is built to deliver long-lasting security and smooth operation even under frequent use. 【High-quality sash window locks set】 Each pack contains two sash jammers along with all necessary mounting screws, adjustable packers, and snap-on cap covers to ensure a clean and customizable fit on various window and door profiles. 【Easy to Install】 The installation process of door and window security locks is simple, these versatile jammers can be easily fitted to both inward and outward opening uPVC, wooden, and composite windows and doors within minutes. 【Elegant and aesthetically pleasing】 This sash jammer featuring a subtle white finish, the low-profile design blends discreetly with most common window and door frame colors while maintaining a neat and unobtrusive appearance. This sash window locks is ideal choice for domestic doors and windows 【Safe and reliable】 This door jammers for inside doors provides reliable anti-intrusion protection and improves child and pet safety by securely locking sliding or hinged windows and doors in homes, offices, or commercial spaces. This sash jammers for upvc doors are ideal for improving safety, Manufacturer: Solbrezeni