Clipping curls for volume and placement control is an part of many naturally curly hair styling routines. I use several kinds of clips, the two most frequent are the single prong and duckbill. This is how I explain it to my clients:
"Single Prongs are give the most control and ease of use for a defined of zig zag part, they are also great for defining a bang or fringe area."
"The Duckbills cover the most real estate and are best for the side of the head, and also for a no part style to direct curls up and away from the face."
Single Prong Clips