With this rowing system, a steel clip is strapped to the oar shaft. It fits over a Thole Pin fastened in the rowing frame's oarlock stands.
The oar can rotate around the pin, but the blade is held vertical, which demands less attention from the rower, an advantage for beginers as well as big water rowers.
Thole Pins are 5/8" zinc-plated steel, with a 3/4" stainless steel sleeve and a 2" threaded plastic ball on the end.
Clips are also plated steel, attach to a 1 7/8" diameter oar shaft with hose clamps. Set includes 2 pins, 3 clips and 6 hose clamps.
Ball screws onto the top end to hold the clip in place, but can loosen with use, so check before each use and carry a spare.
Stirrups(sold separately, item#0364) are flexible plastic, fit over the Thole Pin and bend around the clip, providing a protective housing that keeps your oar and its clip close to the pin if it gets knocked off.