Red Turkish Lava rock Infused with a relaxing blend of Chamomile, Geranium,  Lavender,  Mandarin, Majoram & Patchouli Essential oils. 
Or
Sweet Orange 
A unique twist on your traditional diffuser.
Simply place beside your bed, open the tin about 1 hour before bedtime then pop the lid back on. Relax into into a deep slumber. 
Lava stone is said to have healing properties including: muscle tension relief, clarity, calming effects and anxiety relief (www.djuna.co.uk)
Now in black tins, weights will vary due to the nature of lava, each tin will be full of lava