High quality: The wooden handle features an ergonomic design for a comfortable grip. Equipped with double carbon steel bearing metal wheels, the heavy beech wood handles are durable and resistant to cracking. The thickened and enlarged convex and concave metal wheels are precisely crafted for long-lasting performance. Double wheel sealing roller: The screen window spline roller includes two distinct rollers—convex and concave—enabling efficient and precise installation. The design allows for smooth alignment with the spline, making it easy to press the spline into the channel. Easy screen mesh replacement: The roller ensures consistent pressure, simplifying the process of replacing screen mesh. The mechanism allows for quick and effortless changes, improving overall usability. Wide application: Includes 1 x screen window spline roller and 1 x hook tool. Ideal for installing or replacing window and door screen gaskets, screen mesh, and related components in residential settings.