Mares Razor 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 Razor Blade Fixing Set This kit is essential for assembling the Mares Razor and Razor Pro fin. The kit consists of a blade holder and self-tapping screws. The kit contains the equipment needed to assemble a single freediving fin.