May people use their vision clubs in the rain, and even drop them in the water, wet grass etc. with no issues.
As long as you open them up and let them dry out internally immediately afterwards they will most likely be fine, but we can’t guarantee it. Check out this support page for information on how to access the vision club LED core: https://flowtoys2.freshdesk.com/support/solutions/articles/6000251895-troubleshooting-my-clubs-are-coming-apart-at-the-center-what-can-i-do-
Any problems coming from water damage are a half-price replacement for the damaged part, the “vision club core” under our lifetime warranty warranty.
If you have any questions or need warranty service, please contact us directly at info@flowtoys.com
Happy juggling!