ReFa Active Digit has the following features: A self-conditioning roller that approaches to skin and muscle, leading to a well-rounded body. Fits every part of the face, providing a deep and precise kneading that the skin needs. Features a solar panel, taking in light to generate microcurrent. A compact, waterproof structure for easy use anywhere at anytime. Size: Approximately 50mm x 33mm x 148mm. Weight: Approximately 40g. Accessories: Instruction manual, Guidebook, Pouch, Cleaning Cloth.