The Camera Armor Lens Armor Slip-On Lens Hood is an elastomeric reversible lens hood that stretches and slips over the front of most SLR lenses, with a filter size of up to 82mm (85mm lens diameter). Its impact resistant material provides extra protection against everyday bumps and bashes.
In addition, this lens hood will prevent unwanted stray light from entering the lens by extending and shading the end of the lens.