Feature 1 Adopts high quality materials, lightweight, sturdy and durable. 2 Can decreases the lens focal length for close-up shot and won't alter the image quality. 3 3 rings/set, 12mm, 20mm, 36mm, can be used independently or in combination to get different magnification. 4 Fits tightly onto cameras, support auto focusing. 5 Good accessory for photography lovers, a good substitution to expensive macro lenses for macro photography.Features: Adopts high quality materials, lightweight, sturdy and durable. Can decreases the lens focal length for close-up shot and won't alter the image quality. 3 rings/set, 12mm, 20mm, 36mm, can be used independently or in combination to get different magnification. Fits tightly onto cameras, support auto focusing. Good accessory for photography lovers, a good substitution to expensive macro lenses for macro photography. Suitable for Nikon D7100 D7000 D5300. Specification: Brand: Mcoplus Color: Black Options: N-AF-A(Alloy), N-AF-B(Plastic) Magnification: Adjustable (12mm&20mm&36mm) Suitable for Nikon F mount DSLR Cameras Size: Approx. 9 * 6.5cm / 3.5 * 2.6in Weight: Approx. 220-294g Package List: 1 x Lens Adapter Rings Set 1 x Manual