Made from metal, these sash feature type locking mechanism that ensures secure by engaging the checkrail of both the innermosts and outermost sashes For homeowners look to upgrades their window security, these sash for anyone seek updates to their home ’ s hardware These sash suitable for most room with sliding window Designs to provide locking mechanism for both vertical and horizontal sliding window Easy installation, these sash not only enhances window security but also add modern touch to your home decoration, Manufacturer: Oxxggkao