• Rubber
• Imported
• NO TOOL REQUIRED: Hand Tighten Against Rubber O-Ring Means No Tools Ever
• RUST PROOF: 316 Stainless Steel Will Not Rust In Fresh or Salt water.
• COMPATIBLE WITH 99% OF BOARDS: Fits All Standard Surfboard Fin Boxes For Longboard, SUP, Single Fin, Paddleboard
• NOT COMPATIBLE WITH: Starboard & Naish Paddleboards owners report these are too short for those boards.
• SUPER VALUE: 3 Pack Means You'll Have An Excuse To Buy More Boards