The 5 Limestone Steep Wall Feet works great as medium-sized feet for beginners on vertical walls.
The more advanced climber can use these as steep wall feet.
If you want to kick it up a notch, the advanced climber can use these as small handholds on very low angled terrain. The hold feels like tiny pocketed limestone edges and pinches.
On a vertical wall, expect V4/5. On a 45-degree wall, expect V11+.