Grounding Product Tester For existing shoes you'd like

For existing shoes you'd like to send us

but if you've accidentally put your product in the dryer with heat or want to confirm effectiveness after 6-12 months of use

Want to test your shoes yourself once you purchase

We'll send them back to you upgraded with grounding capability

Grounding Product Tester For existing shoes you'd likeThe continuity tester allows you to test & confirm the effectiveness of your grounding product. There's no need to purchase this with your initial grounding product (unless you'd like to see the science in action!), and NorthStar products are designed with the highest silver thread content to ensure long lasting effectiveness, but if you've accidentally put your product in the dryer with heat or want to confirm effectiveness after 6 12 months of use,