Padded roof rack pads (sold in pairs) in aero dynamic design to protect surfboards during transport. Attaches to roof racks via Velcro enclosure. Secure board(s) to racks using Catch Surf's padded tie-down straps (sold separately). 18" pads are for single board width (carries up to 2 boards stacked) at length 6' or shorter. Designed in California.