Like new, bought this from B&H photo.com when I switched to Sony mirrorless and wanted to use my Nikon full frame lenses.
Adapts full-frame Nikon F-mount lenses to APS-C format Sony E-mount mirrorless cameras as well as full-frame cameras in APS-C crop mode
For example, if you have Nikon 105mm f2.8 and you want to use it on your Sony A6500 (APS-C), it will maintain at 105mm and increase to one full stop, that means the lens will be 105mm f2 on your Sony A6500. What a great booster
Give me your offer if you're interested
Please see the link for details of this adapter:
https://www.bhphotovideo.com/c/product/1192546-REG/vello_lag_nex_nf_nikon_f_lens_to.html