Features: _x000D_ _x000D_ Adopts high quality metal materials, lightweight, sturdy and durable. _x000D_ Can decreases the lens focal length for close-up shot and won't alter the image quality. _x000D_ 3 rings/set, 12mm, 20mm, 36mm, can be used independently or in combination to get different magnification. _x000D_ Fits tightly onto cameras, copper conducts inside support auto focusing. _x000D_ Good accessory for photography lovers, a good substitution to expensive macro lenses for macro photography. _x000D_ _x000D_ Specification:_x000D_ Brand: For Meike_x000D_ Model: MK-N-AF_x000D_ Color: Black_x000D_ Options: B(Plastic)_x000D_ Magnification: Adjustable (12mm&20mm&36mm)_x000D_ Suitable for Nikon F mount DSLR _x000D_ Weight: Approx. 215-225g_x000D_ _x000D_ Package List: _x000D_ 1 x Lens Adapter Rings Set_x000D_ 1 x Manual 1Adopts high quality metal materials, lightweight, sturdy and durable 2Can decreases the lens focal length for close-up shot and won't alter the image quality 33 rings/set, 12mm, 20mm, 36mm, can be used independently or in combination to get different magnification 4Fits tightly onto cameras, copper conducts inside support auto focusing 5Good accessory for photography lovers, a good substitution to expensive macro lenses for macro photography