This toilet bowl deodorizer is a unique toilet rim hangercontaining organic deodorizing compounds that are muchstronger than traditional rim hangers. Specially designed to fitany toilet bowl. VOC compliant in all 50 states. Requires nobatteries or electricity to operate. Keeps area fresh smellingand deodorized for 30-45 days.Note: this product is designed to be installed with the body of therim hanger on the outside of the toilet. Packed 12 per case. Melon Mania fragrance.