Available for both sweep and sculling, sold in pairs (two needed per oarlock).
The Concept2 universal blue bushings provide 3–5 degrees of positive oarlock pitch.
For four degrees (the most common), point the imprinted arrows toward the gate on both the top and bottom of the oarlock. For three or five degrees of pitch, face the desired pitch value toward the gate on the top and away from the gate on the bottom, similar to the white and black bushings.
If you are looking for 1, 2, 6, or 7 degrees of pitch, the traditional style blue rakes are still available through Concept2.