Comfortable jugs that excel in vertical to steep terrain. The divots on the face of the holds come into play as thumb-catches when used as side-pulls.
The steeper the wall gets, the thumb-catches encourage a slight pinching action on the grip. The thumb-catches allow you to engage your core and other larger muscles in your arms, which affords the ability to move off of the hold with more hand control and confidence. As always, they are comfortable and functional, which is what a climbing wall needs out of a jug.