The kit comes ready to-go already packaged in a semi-hard carrying case. All you need to do is order the correct adapter rings for your lenses and you are set to hit the road. The perfect starter kit for the landscape photographer. Each filter provides a specific effect to help you nail the shot. The circular polarizer will remove unwanted reflections to reveal the color and beauty beneath.The 3-stop Nd will give your greater creative freedom to control shutter speeds so waterfalls look like cotton candy. And the 2-stop graduated Nd will help you control the contrast between a bright sky and dimly lit foregrounds making clouds really pop..