The newly designed JJC SRB series deluxe soft release button is made of pure copper and features microfiber leather on its surface, ensuring a soft and comfortable touch at the top of your camera. Simply screw the SRB soft release button into the shutter release button's threads to enjoy a soft and steady shutter release operation. It also enhances the appearance of your camera, making it look stylish and elegant. Once mounted, you can feel its soft and comfortable surface each time you capture a photo. Additionally, this deluxe soft release button is available in 16 models. Two rubber rings are included in each package, primarily for Fujifilm X series cameras to ensure a tight attachment. If your flat camera shutter button does not have a female thread, you can use the JJC SRB-M (optional) to facilitate the mounting of the JJC SRB.