The JJC SRB series of soft release buttons provides a comfortable finger pressure on the top of your camera. These soft release buttons are made of brass and are available in two different shapes: with a concave and a convex surface. Simply screw the SRB soft release button into the thread of the shutter release to enjoy a smooth and consistent shutter function. Additionally, it gives your camera a stylish and elegant appearance. After installation, you will feel the smooth, soft surface with every photo you take. The two types of release buttons are available in nine colors. Each package includes two rubber rings, primarily designed for Fujifilm X-series cameras to ensure a secure attachment, but they are not suitable for RX1-series cameras. If your flat camera shutter button does not have an internal thread, you can use the JJC SRB-M (optional) to assist with the installation of the JJC SRB.