Advantages
 * High temperature sterilization.
 * Deodorant - Keep the cage fresh and clean.
 * Convenient - Sand harden when it is wet, eacy to clean up.
 * Economical - Only remove the contaminated part; others can still be used.

Usage
1. Put approximate 1cm thick sand into the toilet.
2. The sand will be harden when get wet, simply use the scoop to remove the contaiminated part and keep on using the clean remains, or add on new sand if necessary.