Far Infrared & Negative Ions Foot Energizing Insoles - Pink * Can be cut to fit your shoe size. + HEARTZ Frequency Processing Seal - 2 sheets HEARTZ processing seals have unique frequency processing. See image 4 for details. HEARTZ processing seals have frequency processing applied to the entire surface (see image 5, from the catalog), so personally, I not only stick the seals, but also use the backing sheets by inserting them into supports, socks, gloves, etc. from brands like phiten and VENEX. Also, even if the HEARTZ processing seals lose their adhesiveness, I lightly wash them with water and reuse them many times using other tape. Recently, as shown in image 6, I have been using HEARTZ processing seals on my wristwatch as a substitute for a HEARTZ processing bracelet, and also on the part of my glasses that touches my ears. Negative Ions Far Infrared Promotes Blood Circulation Swollen Feet Feet Lower Back Less Fatiguing Fatigue Recovery Warm Antibacterial Athlete's Foot Cushioning HEARTZ Processing Frequency Processing heartz HEARTZ HEARTZ Clinic HEARTZ Super Series good heartz Good Heartz Natural Healing Power Phiten phiten Venex venex