Powerful Suction Cup Fixation Features a high-adhesion vacuum cup design to securely anchoring the lens and sliding damage For Lens flat, semi-flat, pointed 6 screw locking design anti-magnetic stainless steel, beautiful and durability Adjustable from 10mm to 100mm to meet most lens sizes Precise Triple-Head Set Equipped with three specializing heads of different specifications, suitable for disassembly and installation operations on various precise equipment Anti-Slip Protections Design Tool heads feature anti slip to scratches on lenses during repairs 1 set of tools for lens repair or large format lens retention rings can be easily tightened and loosened, meeting repair scenario requirements