These are custom clips that are made out of solid walnut and sold individually. Depending on how you want to display your surfboard you may need from 2 to 4 clips.
It's best to drop me an email (firstname.lastname@example.org) to let me know the style of surfboard and the orientation you would like to display it in. There are weight limitations and instructions on how to measure your surfboard as well as time needed to make them. Usually the whole process takes about 7 days depending on your involvement.