Throughout history and cultures, the red thread (or the red string) has been worn as a representation of protection, faith, good luck, strength, and connection. Black Agate and Tiger eye are highly protective stones. 1mm waxed cotton string, genuine black agate 8 mm beads, genuine tiger eye 8 mm bead, silver plated beads Adjustable bracelet on a waxed cotton string. Fits 6-7.5 inches wrists