Carlisle Oar Socket Kit Made of heavy-duty engineered plastic, the oar sockets create a secure hold for Carlisle or other oar locks. Each socket is designed to fit a 1/2-inch diameter oar lock. The kit includes all the hardware necessary for installation and easy-to-follow instructions. Does not fit Rogue River, Rockport, or Saranac canoes. Includes two oar sockets.