20 weeks of continuous cleaning. A family company. Each Gel Stamp lasts up to 12 days. Every flush keeps your toilet continuously clean & sanitary. Everything included. Usage instructions on side of carton. Button. Dispenser. Gel disc holder. Removable cap. Just stamp on-gel adheres to toilet bowl. Discreet gel stamps sit under the rim. Dissolves to clean and freshen the bowl with every flush. Continuously cleans and freshens for up to 20 weeks. A family company since 1886. - Fish Johnson. Safe for septic systems. Retain this box for full use and safety instructions. Questions? Comments? Call 800-558-5252 or write Helen Johnson. www.scrubbingbubbles.com. Made in Mexico.