Drop-forge production process yields a much higher strength-to-weight ratio compared to cast or machined aluminum components It is extremely hard to "pop" an oar through the tines of the NRS Aluminum Oarlock, allowing you to row big water with more confidence If somehow you do pop an oar, the tines return to their original shape, so you're not left with a bent oarlock The secret to the part's strength is the aligning of the metal's crystalline structure by the heat and stamping Sold individually The NRS Atomic Oarlock is a lightweight aluminum powerhouse that holds your oars securely. Their drop-forged design yields a much higher strength to weight ratio than traditional cast or machined oar locks but gives you the same great time-tested shape. Smooth finishing reduces wear and tear on oars, sleeves, and ropes.