This product is ideal for rowers who use oar locks and need durable inserts that can withstand heavy wear and tear.
Nylon For Oar Lock Inserts for Efficient Rowing Perfectly Designed to Reduce Wear on Your Equipment with Packs Available in Four or Eight Count (4PCS)
Nylon Paddle Lock Socket Bushing Nylon Marine Oar Lock Insert Replacement
Paddle Lock Sleeve Nylon Marine Oar Lock Insert Replacement Part