Benefits: Stimulates the flow of blood and lymph - Increases blood flow to the affected area - Nourish, rejuvenate the skin with natural feel - Reduces tension - Provides total relaxation - Eco-friendly and renewable resource - Ultralight weight and portableSizes:The set contains: 2 pieces x 14.9 or 2 pieces x 9.8 or 2 pieces x 5.9When to use the bamboo sticks: Muscle tension pain - Tightness in muscles and tendons - Regular physical work - Prolonged sittingHow to use: With oils/lotions and with heat via use of a heating pad of some sort, and rotating pieces in and out every few minutes as they cool. It is great to use for self-care use, partner-assisted use. Great to use for professionals (massage therapist, physiotherapist, etc.)Material and Care: Natural Bamboo; Please note that bamboo sticks must be carefully clean after every use, disinfect them with wipe/agent. Do not apply chemicals on bamboo sticks and keep them dry as much as possible