It provides protections against slamming or opening window on blow days, improving comfort and The limiter adopts a hook type design with multiple slots for easy operate and high stability, and is not easy to fall off Multiple slots for easy operate With window you can open window as needed and control and adjust the opening angles This adjustable window limiter is suitable for casement doors and window The tilting window is make of Carbon Steel, which is rustproof and wear-resistant, Manufacturer: YROHGKPN