P.S. Love heat adhesive for one-time use for the back

Blood heat-sensitive patch for single use for the back: effective against pain and drug-free. Relieves back pain through heating and providing support. Effective for 12 hours to remove pain for the longest possible duration. Activates with air: heating begins simply by removing the patch from the container and contacting it with air. Odorless and designed for single use only. The package contains 2 patches. Each patch can be divided into two sections to better target pain areas. Brand: Blood.