- Double headed large and small concave wheels adapt to different frame sizes, enabling one tool to handle multiple installation needs. - Suitable for installing window screens, sliding screen doors, terrace screens, and similar mesh enclosures. - Arc shaped wooden handle provides a comfortable grip and reduces effort during use. - Thickened concave wheels offer stronger contact and easier operation for smoother, more reliable performance. - Made from high quality aluminum alloy for high hardness and wear resistance. - Use scenario 1: Install or replace window screens in homes with varying frame dimensions using the dual wheel design to fit multiple gaps. - Use scenario 2: Install or adjust sliding screen doors to ensure a snug fit and easy operation. - Use scenario 3: Install terrace screens for outdoor spaces, benefiting from durable wheels that withstand frequent use.