Double-layer honeycomb design helps you gather the litter. You just pick up the mat and all the litter falls through and then dump it back in the litter box make it recycling. BEST MAT EVER! No more getting litter stuck to my feet on a daily basis! Large holes is large enough to catch and trap litter. Suitable for lots of type of litter, and kitty litter boxes,hooded,self cleaning litter box.