Universal Professional Tulip Lens Hood is primarily designed to prevent unwanted stray light (flare) from entering the lens by extending and shading the end of the lens. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. Screw-mount lens hoods, such as this, are designed to screw right into your lens or filter.
Lens hood Works with the Following Panasonic Lenses
Panasonic Lumix G X Vario 12-35mm f/2.8 Asph
Lumix G VARIO 14-140mm f/3.5-5.6 ASPH
Lumix G Vario 35-100mm f/2.8 Zoom Lens