The seller supplied the following interesting description of these tubes:The zirconium tubes are the ends of a long piece of tubing lathed into shorter lengths for the purpose of placing pellets of U238 for reactor function.
A trigger event. Many people experience a general thinning of hair several months after a physical or emotional shock. This type of hair loss is temporary. Examples of trigger events include sudden or excessive weight loss, a high fever, surgery, or a death in the family.
Your hair's thickness naturally starts to wane in your mid-20s. Smoking, excessive heat and chemical treatments can make the unwanted change even more pronounced. It's tough to permanently thicken hair, but that doesn't mean you need to live with fine, limp locks.