The Deluxe Soft Release of the SRB series by JJC is made of pure copper and is covered with microfiber leather, providing a soft and pleasant grip on the top of your camera. Simply screw the SRB soft release into the thread of the shutter button and enjoy the gentle and smooth release of the shutter. Additionally, it enhances the appearance of your camera, making it look stylish and elegant. Once attached to your camera, you can feel its soft and comfortable surface every time you take a photo. This Deluxe Soft Release Button series is available in 16 models. Each package includes two rubber rings, primarily used for Fujifilm X-series cameras, to ensure a secure attachment. If your flat camera shutter button does not have an internal thread, you can use the JJC SRB-M (optional) to attach the JJC SRB.