Each link of these lake sand bracelets contains sand from Rainy Lake. The sands are from both the US and Canadian sides of Rainy Lake. The lake sand bezel links are .999 fine silver plated with toggle clasp. The bracelets shown are 6" bracelets but I can easily add another link - FREE - to accommodate a 7" wrist. Please email if you would like to order a custom multi link sand bracelet with your own sand. I'd love to create one for you!