brand new and high quality. Features: It is possible to use for macro rings and other accessories. Made of metal - aluminium alloy. Only for macro photography, unable to for focus for infinity. Suitable for: for Nikon DSLR and Film SLR and for M42 lenses. Lens mount adapter only, other accessories demo in the picture is not included! Specification: Item Name: Lens mount adapter Material: Aluminium alloy Shape: Round Type: Extension Tubes Camera/Camcorder Fitting: for Nikon F Lens Fitting: M42 Size: Outer Diameter: 6cm/2.36'' Inner Diameter: 4.2cm/1.65'' Color: Black Quantity: 1 Pc Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Lens mount adapter (without retail package)