FRAGRANCE QUARTET The olfactory sense of many people or patients can be improved with the olfactory pens of the olfactory quartet. According to current knowledge, the effect of olfactory training is based on both stimulating the olfactory mucous membrane in the nose and improving sensory impressions in the brain. The fragrance quartet consists of 4 smelling sticks that release different scents: "Lemon", "Rose", "Clove" and "Eucalyptus". Included in delivery : 4 smelling pens, 1 cotton glove, instructions for use (available in German or English) This item is drop shipped for best use and longevity. May take 3 weeks for delivery.