TRUST Sponge BitThe TRUST Sponge Bit is designed for horses with very sensitive mouths or with mouth injuries. It can be used as a daily riding bit or used occasionally when the horse is very sensitive in the mouth due to a wound or recent dental care. The TRUST Sponge Bit is best used with TRUST Wound Elixer, a natural blend designed to help heal the horses mouth corners. To use, simply apply the elixir to the sponge mouthpiece, allowing it to soak in before putting