Specification of Wooden Body Massage Set Derma Roller for Face Neck Arm Hand: Box contents: 2x massage roller (18 x 4 and 11 x 3 cm). Maderotherapy reduces tension on the whole body. It improves blood circulation to activate increased collagen production in the skin. It is a relaxing facial massage with excellent anti-aging results. Made from 100% natural wood. The exceptional quality and strength of the wood allow for long-term use. Made in Europe.