Physician developed. Uses: Relieves allergies & sinus symptoms. Soothing, no burning or stinging large volume & low pressure system for therapeutic & preventative saline nasal irrigation, moisturization & daily nasal hygiene. Single piece custom designed cap fits any nasal opening. No push and pull components make for easy cleaning. Preservative, iodine and latex free. Safe during pregnancy. Contains: 1 custom designed cap, 1 rinse bottle 240 mL (8 oz.), 1 tube, 5 packets of USP Grade (99.9% pure) Sodium Chloride & Sodium Bicarbonate mixture, educational brochure, directions for use.