- Infills are used to make dual tab FCS I fins compatible with FCS II plugs
- The gap that is created when an FCS fin is inserted into an FCS II plug is filled with the infill. So it is possible to put the old FCS fins into the new FCS II plugs.
- The infills are made of high-quality silicone, which does not damage the plugs. They are also extremely durable, lightweight and made to withstand extreme conditions.
Set of 1x center infill, 4x side infill, 10x 8mm screws and 1x fin key