This is the Leofoto lens foot "SGF-01". It can be used as a tripod mount for the SIGMA 150-600mm F5-6.3 DG DN OS | Sports / SIGMA 60-600 F4.5-6.3 DG DN OS | Sports lenses. It has been used a few times, but there are no noticeable scratches or stains, and it is in very clean condition. It has been stored at home. [Brand] Leofoto [Model Number] SF-01 [Category] Lens Foot, Tripod Mount [Color] Black Thank you. Leofoto SGF-01 Lens Foot / Domestic Genuine Product Brand: Leofoto