Deep Heat Neck and Joint Heat Patches provide up to 8 hours of targeted, sustained, soothing temporary pain relief of Back Pain, Muscular Aches and Pain, Joint Stiffness, Strains and Sprains. Comfortable to wear, this odourless heat patch applies directly to the skin and can be worn unnoticed under clothing to provide all day relief. • SUSTAINED – up to 8 hours of long-lasting therapeutic heat • ODOURLESS – discreet relief for work or social occasions • 1 MINUTE – activation time* • MULTI-PURPOSE SIZE - 20cm x 9cm that can also be used for other joints & muscles • EVERYDAY PAINS – temporarily relieve mild Muscle and Joint Pain as required • THIN AND COMFORTABLE - size and cut that fits the natural shape of the neck and joints *patch activates in 1 min and commences heating within 5 mins. HEAT THERAPY works by increasing blood flow to the affected area providing more oxygen and nutrients to aid the healing process and helps restore movement.