2 rim hangers. 4-in-1 Automatic Toilet Cleaner: 1. Cleans. 2. Prevents future build-up. 3. Fights toilet ring. 4. Freshens up to 4 weeks. +40% freshness in the core (Every core has +40% freshness vs. the outer shell for freshness intensity from first to last flush). Contains no phosphorus. Septic tank safe. www.softscrub.com. how2recycle.info. Questions or comments? Call 1-800-290-0158 or visit us at www.softscrub.com. Made in Serbia.