1. Package includes - 2 window limiters, 2 mounting hooks, 8 screws. Enough to meet your daily needs. 2. Adjustable opening width - Our interior window locks can be adjusted to 5 different opening widths, so you can adjust it to the width you need. Very practical for daily use. 3. High-quality materials - These window limiters are made of stainless steel, with good performance and strength, safer, stronger, not easy to break or rust, can withstand greater pressure and have a long service life. 4. Easy to install - Our window latch can be directly inserted into your original door handle and can be directly fixed without additional mounting screws. 5. Application - Our window limiters are suitable for all kinds of sliding windows and casement windows and help to fix the windows.