N-AF-A Auto Focus Macro Extension Tube Ring for Nikon cameras

N-AF-A Auto Focus Macro Extension Tube Ring for Nikon cameras. Specifically, it's compatible with Nikon D90, D3000, D3100, D3200, D5000, D5100, D5200, D7000, and D7100 models. The tube ring allows for macro photography by extending the distance between the camera lens and the sensor.