Compatible for lens with thread diameters ranging from 22mm to 105mm, meeting the needs of most lens size With its small size, the lens vise can be carried in a backpack, ensuring convenience and portability where you go The widened bracket allows for separate use as a screwdriver for precise screw control The pointed tip is to fit notched lens retaining, while the flat tip smoothly engages slotted surfaces, providing functionality for different tasks. These tip can be secures fixed with the included L wrench Craft from strong antimagnetic steel, durability and ,anticorrosion