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This shiatsu back massage cushion features 4 deep-kneading shiatsu massage nodes and 2 Selective rotation directions to help relax and relieve muscle tension. It is made of PU leather and breathable mesh, which is durable and waterproof. The back massage with soothing heat therapy helps for better blood circulation. It is equipped with overheat protection for safety. With the ergonomic design, it is fit for the lower and upper back, calves, and thigh areas. The additional flap with an acupuncture tip is designed for releasing tension. There is an adjustable strap to secure the chair, an auto 15 minutes timer and an easy-to-use hand controller.