Neewer Ridged Interior Camera Lens Filter Wrench Kit (Pair of Two) - Fit Lens Thread 48-58mm for Canon, Nikon, Sony, and Other DSLR Cameras Lightweight, Flexible Plastic Construction. Works on lenses and filters that are 48-58mm. Use these wrenches to remove stuck or stubborn filters from lenses or each other. Ridged interior designed not to scratch. The squeeze-type design ensures comfort and grip for ease of use. Strong gripping surface designed to unscrew the stuck filter without damaging it.