About this item Compatible: This soft release button fit for Leica M9 M10, Fuji Xpro 3 / X-Pro2 / Xpro1 / X100V / X100F / X100T / X100S / X100 / X-E3 / X-E2 / X-E1 / XT4 /XT3 / XT2 / XT1 / X30 / X20 / X10 / XT30 / X-T20, Nikon DF, Olympus Pen-F etc Pack of 6 Concave Surface Shutter Release Button (Rubber O-Ring Included) Size:1mm (Diameter) Thread size: ¼ in Material: pure copper Exquisite: The soft release button is made of pure copper. Noble and elegant, it can perfectly set off your favorite camera. Bring the ultimate shooting experience. Easy to install: Just screw our fuji shutter button clockwise into the groove of the lensmate soft release button of the original camera and tighten it