Rolling Thunder - Grip Trainer

Made my own version of the rolling thunder grip strength trainer for 3D printing.

You need:
1x 120mm long threaded rod M8,
2x Locktite M8 nuts
2x spacers for M8
2x 608ZZ bearings for the roller.

Put bearings in each side of the roller, put the spacers between the roller and the handle to prevent touching of the bearings, thread the rod and tighten with the nuts.

Happy grip training!