There is some wear and tear, but it's a product that has been used with care and has a nice patina. The brass material is more noticeable than I expected, so it wasn't a good match for me personally. It's a perfect match for a black painted M-type camera, so I hope it suits someone's taste. The first and second photos are for installation reference. ------------------------------------- This is the raw finish of a release button S made by turning solid brass on a lathe. The S size has a sharp impression, and fits particularly well on Leica M-type cameras. It's made thin, so you can feel the shutter release more directly. Since it's a raw finish without any clear coating, the color of the brass will develop as you use it. The top of the button has a gently concave curved surface, so your finger naturally fits there. The sides are knurled, making it easier to screw on during installation. An O-ring is also included to be installed between the button and the camera, preventing the screw from loosening and the button from falling off. *Depending on the model, it may be difficult to screw in during installation. In that case, screw it in while pressing slightly. If you still can't install it, please remove the O-ring. Since it is a raw brass finish without any clear coating, there may be some discoloration when it arrives. Please understand this as a characteristic of the material. Size / S: φ11 x h2.6 mm (h5.0 including the threaded part) Thank you for viewing.