High quality: this spanner is made of qualified stainless steel, is solid and firm. After grinding and polishing, the surface is smooth and burr-free. Practical: 10 mm - 130 mm lens can be removed, the rod body is extended and thickened, made of stainless steel, quick positioning. Well developed – The maximum opening is 130 mm, with a double head design and a flat end, which is convenient to use. Ideal tool – non-slip and firm locking of the screw hole, which means that the lens cannot be easily damaged. Great accessory for camera lens. Includes: comes with 2 hex screws and an Allen key. Can be used to replace two inner hex bolts and tighten the wrench opening tool.