Cura heat arthritis pain for knee pain is a self heating system which stays in place over the wrist area delivering deep comforting heat for up to 8 hours to provide targeted temporary relief to arthritis pain with no need for preparation just open the sachet and insert the heat pack into the wrap pocket the comforting heat can help relieve the pain and aches associated with arthritis in the joint area by increasing blood circulation non medicinal portable and discreet cura heat arthriti