Deluxe Nakayama-style Foot Massager, large and small set, with instruction manual. The "Deluxe" is a powerful type that provides a stronger pressing effect. Includes a set of two: K-type two-ball for the cervical spine and F-type four-ball for activating the nerves of the stomach and intestines. - Model Name: Deluxe Nakayama-style Foot Massager - Color: Brown - Size: Set of 2, large and small