Aventurine and natural Citrine beads with brass.
Adjustable in size.
 
Aventurine - Green:
 
Vitality, growth, confidence. 
Water and Earth element.
Heart chakra.
 
A stone of optimism and a zest for life. A push to move forward in new directions. A stone of good luck. Supports emotional and physical healing and energy balancing —releasing old patterns and lessons. Movement, clarity, hope and optimism.
 
Citrine:
Manifestation, personal will, mental clarity and creativity.
Fire element.
Root, sacral and solar plexus chakras.
 
A vibrant energy that helps with manifestation and has stimulating energy to be more assertive and outgoing. Helps to Lighten energy field and create abundance and prosperity. 
It can also help with developing better boundaries and assist one in learning. 
A stone of optimism and playfulness.