V-Tec rollers sparse structure is similar than with multi-tree handling andthe spikes are like in rib rollers except that they are positioned at anangle. The structure provides excellent grip and open structure keeps therollers clean and still the spikes do not bite deep in the wood. The teethare wide so the pressure is equalized also on the surface wheredelimbing knives have removed the bark. The same roller can be used onboth sides. F-code includes one feed roller.