These worry stones are smooth and slightly indented for resting your thumb. Stones are approximately 1.5" x 1.25"

Shungite: purity, clarity, cleansing, transformation

Shungite can relieve emotional stress neutralize negative energies and even deflect electromagnetic waves. A good stone to have in your pocket with your phone. 

Serpentine: inner serenity, emotional repair and cleansing, energetic protection 

Serpentine is a useful stone for those who want to maintain flexibility of perception. It can smooth away imprinted thought patterns and protect you from negative energies.

Sodalite: creativity, emotional balance, communication, intellectual stimulation

Sodalite supports a collaborative mindset and a secure sense of self. A great stone for minimizing anxiety at social events or for boosting your motivation while working on creative projects. 

This stone has a diameter of about 1.75"