The extremely-compact clumping method of ARM & HAMMER™ HardBall™ Clumping Litter is 60% lighter than our typical clay litter, nevertheless it shrinks squander and odors for up to 20 days of assured freshness.like 11 usd for 1box/2bags. also, i propose combine it with dr elsey precious cat ultra unscented clay litter… can be 50/50. very first