TANK® M4 Push Sled Kensui Feel better faster with the

Feel better faster with the only neck therapy tool that targets and treats the root cause of neck pain

Can be used with any load

Your grip and shoulders may experience fatigue initially

Improves mobility

Tailor your blue light protection with clear

TANK® M4 Push Sled Kensui Feel better faster with theThe TANK M4 continues the evolution of this unique push sled on wheels. The core technology that makes all TANK models unique is that unlike resistance sleds, they can be run indoors or outdoors on any surface without gouging. Also on all TANK models the resistance increases the faster you push it, so each user can choose their resistance on the fly, without stopping to load or unload plates. New Features on the M4: Resistance The wheel resistance or