Trampa's very own & very special re-enforced Spring retainer. Specifically shaped to fit tightly inside the Trampa springs & snugly hold the Trampa Dampa in the exact position to give precision steering to the rider. Made by Injection Moulding using original Dupont Materials. An extra wide Marine Grade Stainless Steel Flanged Insert is seated internally which re-enforces the Retainer. The Extra Strength of the re-enforced flange, eliminates the need for a very fiddly fitting washer that is still found in the MBS and Scrub boards today. Designed to work in harmony with the Trampa spring and Trampa Dampa to help create immediate resistance from your steering system Pimp Trampa Embossed around the rim of the retainer - Performance with Pimpness!