FlexEze Heat Patches may provide drug free pain relief for lower back pain and tight or tense muscles for up to 14 hours. They fit comfortably under clothing to provide low level heat therapy - helping you to stay active. The ability to keep moving whilst receiving low level heat to the lower back has been demonstrated in multiple randomized controlled trials to reduce back pain. FlexEze Heat Wraps are used in major hospitals and rehabilitation units throughout Australia. They are ideal for muscular aches and tightness, sore joints, sports injuries, tendon or ligament strains, sprains, pelvic pain and menstrual cramps.