Cute double helix DNA strand ring. Comfortably adjustable between sizes 6-9. 925 sterling silver plated. Other listings: plain small band dainty minimalist silver chrome scientist doctor nurse sister mother aunt daughter family gift for her biologist dna double helix platinum engagement cz cubic zirconia zircon diamond 10k 14k 18k necklace bracelet earring milgrain lariat eternity tear drop pear carat flower daisy anniversary fine vintage style womens sterling silver jewelry bridal hoops emerald promise 10kt 14kt pearl pave wedding platinum opal pink gift prom rose gold 925 bling natural engraved real genuine gem stud set square cushion princess round circle accent stones bangle micro bands sky light rings crystal shiny sparkly ice scroll braided twist thin hoop thick wave gifts presents mothers valentines day birthday ring solitaire triple open triangle glittery sparkly sparkle fire fancy band girlfriend mom sister wife aunt cousin daughter size 6 6.5 7 7.5 8 8.5 9 9.5