Expertly handcrafted from durable black nylon, the adjustable cord measures 14-28 inches (35-70 cm) for maximum strength and flexibility.

1.8*1.1"(46*28mm) Black Obsidian Yin Yang Pendant: Yang/Dragon is for Male; Yin/Phoenix is for female.

Yin Yang Necklaces: Dragon pendant represents the "Yin" like the lows of life while Phoenix pendant represents "Yang" like highs of life, this yin yang couple necklaces remind you to stay balanced and have a better control of reality

Gems Properties: According to belief, obsidian encourages personal growth and offers protection against negative energies, while promoting a positive mindset.

learn more:https://www.jewelrybuddha.com/collections/dragon-phoenix/products/obsidian-yin-yang-dragon-and-phoenix-pendant-necklaces-for-couples