Mares X-Wing Blade Fixing Set Mares Sale! from $ 11.95 USD /per Produc variants Default Title - Sold Out Qty. Sold Out Couldn't load pickup availability Refresh X-Wing Blade Fixing Set Essential kit for assembling Mares X-Wing Blade fin. The kit consists of a blade holder and self-tapping screws. The kit contains the equipment needed to assemble a single freediving fin.