... & clean up. It is non-tracking, non-clumping, non-dust, with light weight, produces little waste, easy & safe for household use ... litter from scattering or tracking out.Use1. Fill litter box with silica gel cat litter to the lever of 1.5 ... the box, the proposed way to use one 1.8kg bag is following: one cat, one month, two Cats, about 15 days, three cats ...