ThermaCare Therapeutic Heat Wraps Neck Shoulder and Wrist are specially designed to provide targeted pain relief for difficult areas such as the shoulder neck and wrist. They work as heat pads to soothe muscle pain strains and sprains and can be attached easily to curvy areas without becoming dislodged. These heat wraps are easy to use and heat themselves - quickly working to warm affected areas to relieve stress and tension. They also help increase blood circulation so damaged or tired muscles can repair themselves much faster. These pads are thin discreet and odourless so it won't be obvious when you wear them. Each pad works throughout the day to provide targeted therapeutic relief for muscles. These pads can also help to soothe the effects of overexertion and arthritis.