This is an ultra-cool hold for home walls, especially steep ones. To start the party, the large hedron crystal on the top has been designed to be a sloper on every wall angle except a vertical one. On a vertical wall, the crystal has no incut or slope; however, the crystal has two angles leaning left and right, which makes for an interesting hold to pull and match on.
The crystal will act like a sloper on 20 to 30-degree overhanging walls, and then on any wall steeper than 30 degrees, the crystal becomes a compression hold. You won't be able to pull straight down on the crystal in steep terrain, but that's what makes it a cool compression/sidepull hold.
As for the t-nuts, there are 6, which differs from the Bolt-on version of this shape Volume #5. This screw-on model gets the extra t-nut on the face of the hold, which is the largest area to a small to medium-sized hold. The area on the face measures 2-1/2" x 4", so not a very big hold can fit there. I like using crimps in that location.
The remaining areas with t-nuts measure 2-1/2" x 3-1/2", 3-1/2" x 3-1/2", and 2-1/2" x 4". The width is measured from the middle of the t-nut. You can fit almost any small footholds and some crimps/micro-edges.
I like adding feet to the smallest areas so my boulder problems on steep walls get a different plane to press my feet on. It has an outdoor feel when you set it with dimensional plane changes like that.
*Please do not drill spinner screw holes or any other holes into Polyurethane Volumes. You can weaken the structural integrity of the product. This practice also voids our warranty.