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. 
Now in black tins, weights will vary due to the nature of lava, each tin will be full of lava