The Rest Easy diffuser ring is infused with soothing Himalayan cedarwood, ho wood, sweet orange, Roman chamomile, and vetiver. Essence was created and is manufactured in the USA. What started as a casual dinner conversation has evolved into a tangible product that enables people to enjoy refreshing, pleasant aromas while providing a calming experience. This small, discreet product is made of medical-grade material that is flexible and can be infused with 100% Essential Oils. It is one size fits all, offering versatile use for various daily activities.