Features: SELECTED MATERIAL: Made of high-quality aluminum alloy, featuring with high-strength, stability, durability and abrasion resistance. HIGH PERFORMANCE: Supporting exact TTL exposure and auto-focus, allowing you to capture more professional and attractive macro shooting. HIGH COMPATIBILITY: With a wider compatibility, replacement for Nikon Z6/Z7/Z50/Z7II/Z6II Z-Mount series cameras and lenses, convenient for photographers to use. FREE COMBINATION: Including two tubes (26mm, 36mm), which constructs three combinations for you to choose according to various needs, easy to use. MACRO PHOTOGRAPHY: Focus on exact macro shooting, for photographers and shutterbugs to acquire marvelous macro shooting, to explore and create close-up beauty.