VKO soft release buttons ensures a comfortable finger touch at the top of your camera. The soft release buttons are made of brass. This series soft release buttons are divided into two different shapes- concave surface and convex surface. Just screw the soft release button into shutter release button's threads and you will enjoy the soft and steady shutter release operation. In addition, it decorates your camera, which will make your camera look more stylish and elegant. After it is mounted on your camera, each time you capture a photo, you can feel its smooth soft surface.</br></br> Package:</br> 1pcs 11mm(diameter)concave surface and 1pcs 10mm(diameter)convex surface red metal shutter release button with 4pcs rubber ring, other accessories not included.