5.5 In. KEEL Center Fin, Flex Soft, 14.5cm, for Longboard SUPs (airSUP AIR7 Keel Fin, Blue, Screwless)

These excellent all-around fins can be used with either a tri-fin or single-fin setup, depending on the board type and length. The base area provides drive and hold during turns, while the smaller dip area provides smoothness. Features a safe, soft flex - Safety Flex Soft! Made entirely of soft rubber, these fins are safe and recommended for women and beginners, as well as for reef (shallow water/rocky reef) and river rafting. The Dolphin Fin model is the most standard shape and is the most popular fin. Its shape, modeled after a dolphin's dorsal fin, smooths turns and makes it a versatile fin. Air7 Box for longboards, paddleboards, and airSUPs (fin screws are optional; please select). Made of saltwater-resistant stainless steel. Thread: 3.8mm diameter x 18mm Length Nut: 14mm x 14mm x 4mm Height Tool-free fin screw Highly safe, soft flex type. Compatible with longboards, SUPs, and airSUPs! River rafting and more! This excellent all-around fin can be used with tri-fin or single-fin setups depending on the board type and length. The base area provides drive and hold during turns, while the smaller dip area provides smoothness. Highly safe, soft flex type! [Color] Black or Blue [Size] 5.5" (14.5cm) [Accessories] - 1 center fin (fin screw is optional. Please select)