Frustrated at the lack of foot options to prepare climbers for the precision of many outdoor climbs, Kris from Power Company Climbing asked to team up with us to fill that void. https://www.powercompanyclimbing.com/
This set of feet, designed for 20 to 35 degree walls, are shaped specifically to force useful foot positions and precision that we don't often encounter indoors.
Using general construction screws, drywall screws, or any non-structural screw can be dangerous when installing climbing holds.
GRK #9 screws have a structural rating (#8 GRK do not) and are the only screws we recommend for installing climbing holds. Safely installing holds is important with precious hands pulling pulling on these plastic grips.