Lattice Training Heavy Roller climbing portable hold Cheap

Lattice Heavy Roller is a wrist training device that uses a staggered loading mechanism. To maintain the grip during a lift, it is necessary to squeeze the device and flex or extend the wrist against the direction of rotation. The high torsion generated at relatively low loads acts on the wrist extensor or flexor muscles to improve grip strength without loading the shoulders. An ideal training tool for climbers wishing to maximise grip strength.