WIM HOF METHOD INSTRUCTOR - MILES LUKAS
Track HR, HRV, and sleep. Get a free WHOOP strap and first month with my link.
Not to heavy to move and sturdy enough to leave outside.
The have a tiny breathe slit to keep you from feeling claustrophobic
Some people say we look alike. I don't see it.
While these look small, my friends of all sizes use them
These are the ONLY plastic containers I've used that don't crack
Reduce Snoring and Relieve Nose Congestion