Using high-density aviation aluminum, automatic CNC machine tools, diamond multi-heads, hollow carving precision machining. Vibration polishing technology is adopted, which improves the precision by 20% compared with manual polishing, and multiple of , so that the color uniformity of the metal surface is increased by 10%; It adopts the structure , improves the appearance and adds extended functions. Including wavy handles, screw holes at both ends, and petal-shaped locking knobs; The bottom adopts /-SWISS standard quick release plate, 1/4 and 3/8 screw holes, stainless steel anti- screws; If you use an extender, it is recommended to purchase the IS-TB01 telephoto bracket separately to protect the lens mount. Type: Lens Replacement Foot Bracket of application: for Nikkor Z 70-200mm F2.8 VR S for Nikkor Z 100-400mm F4.5-5.6 VR S Colour:black Material:Metal Package Contents: 1 x Lens Bracket 1 x Quick Release Plate Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.