I make these Reed Diffusers with a Natural and Vegan Friendly non-Toxic Base and High Quality Scents.
Each one is 50ml and comes with 5 natural fibre reeds. There is no need to turn these as the scent travels up and continues to. 
Scents to choose from are:
Coconut & Lime
Myrhh & Tonka
Sandalwood & Vanilla
Exotic Bloom
Sage & Seasalt
Jasmine,Sambec & Marigold
Pistachio, Almond & Vanilla
Rhubarb & Rose
Velvet Rose & Oud
Tobacco & Oak