Two wheels, convex and concave, provide versatility for screen and help the spline sit smoothly in different groove profiles, improving efficiency. Compatible uses include installing window screens, sliding screen doors, general screens, and even aquarium screens. It is suitable for patio screens, garden screens, pool screens, porch screens, sliding doors, entry doors, and patio doors. The screen spline removal hook is sharp and allows easy removal of old spline without excessive force. An essential tool for replacing sliding screen doors and windows, it supports both large and small screen repairs and is suitable for most screen materials. Use scenarios Replacing a torn window screen in a patio or entry door to restore a clean, secure enclosure. Installing or repairing screens in patio, garden, pool, or porch enclosures, including sliding screen doors. Maintaining aquarium screen setups or other mesh enclosures that require reliable spline installation and removal.