Instructions: Fill disinfected litter box with 3 inches of litter, scoop daily. For best odor prevention and clumps, maintain 3 inches of litter. Replace all used litter with fresh litter once a month. Dispose in trash, do not flush down toilets or drains. Boxie® is landfill friendly. Not for internal use. Not meant for use as compost or as a traction aid. Store in a cool, dry place. Product filled by weight; some settling may occur. We recommend introducing any clay litter to kittens after 2 months of age.