Metal tripod mount for the ED100-400mm IS II, allowing for instant switching between vertical and horizontal positions, providing stability. - Model: For ED100-400mm IS II - Type: Tripod Mount - Color: Black - Material: Metal Thank you for viewing. Used very few times, and I couldn't find any scratches to the naked eye. I think it can also be used with the first generation 100-400mm lens, but this tripod mount was included with the IS II. ※ The lens hood for the same lens is also on sale, and we are waiting for consultations such as combined purchases.