XXL Facet Rail #1 offers a 1" deep incut that runs the entire width of the hold. The incut is around 55-degrees, which means it is still incut on a 45-degree overhanging wall. You can expect a V4 feeling hold on 45-degree terrain.
This is a beginner hold on vertical walls, and when you start looking to challenge yourself on it, orienting it vertically makes it an awesome Side-pull. Expect V1 on a vertical wall when set horizontally and V2 when positioned vertically.
Here are links to the five rails found in this series.