brand new and good quality The item is designed for M42 Lightweight and It's very easy to carry and be operated The rear lens is used when storing your lens or after the lens has been removed from your camera Screwing the rear lens that keep dust from your lens mechanism Specification: matter: Plastic Color: Black Quantity:1 Pc Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 X Rear Lens For M42