4 disposable applicators. Self sticking gels. Single use application. 1 month supply (Each unit lasts one week). Keeps toilets clean & fresh! (Each unit lasts one week). Single Use Gel Application: Apply the gel with a single use, disposable applicator. No cage, no hook, nothing to store. Continuous Clean and Fresh Toilets: Cleaning and freshness with every flush. Each application lasts up to 1 week. Safe for septic tanks. For more information, go to www.lysol.com/clickgel. Just press & click. Questions? 1-800-228-4722. For ingredient and other information, www.rbnainfo.com. Made in Mexico.