EN 
PentaCore features a five-zone internal core layout, organized radially from the center to the perimeter.
Central core zone – primary impact and response area
Four surrounding support zones – energy buffering and directional control
Integrated perimeter transition – structural continuity between face and frame
This layout allows impact energy to be absorbed, redirected, and released in stages, rather than instantaneously.
The objective is not maximum rebound, but predictable rebound behavior across the entire face.
