For stubborn lens filters! This metal wrench-type tool is convenient for removing filters that are firmly attached to camera and video camera lenses and won't come off. Compatible filter sizes: 49mm to 82mm Durable metal construction for a strong grip Features a serrated design for non-slip operation Easy to operate, like opening a jar lid Portable size, reliable even on location or at a shoot It can handle tightly fastened filters that plastic tools can't budge. Recommended for those who want to perform their own maintenance. When using, it is recommended to place a soft cloth or similar material between the tool and the filter/lens to prevent scratches.