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.
1 As women age and hormones change there can be a surge of the hormone dihydrotestosterone (DHT), which can cause hair on the head to thin, while hair to sprout on the chin and face.  Hereditary hair loss. According to the ADD, 80 million men and women experience alopecia, or common hereditary hair loss.