Calibrated Spring System

The Massive Novelties Calibrated Spring System!

This new product can be added to any existing MN Product, but is mainly geared towards being an upgrade for DIY and 1.0 owners.

It boasts an engraved measuring system that can measure up to 15 pounds of tension! The 3D printed casing comes with brass inserts that serve to smooth the actuation of the thumb screws, making the process of increasing tension both easier to track and less likely to snag. The measurements are etched into the casing preventing them from wearing off. 

Kit includes the springs, tubes, and brass assembly. You will use your old crossbar and hook assembly.

*Get an automatic discount off the Clip-on Bundled Extending Knob when purchased with the new Calibrated Spring System!*