Bundle & Bliss Cat Litter Tray Stainless Steel Rabbit Litter Tray Large Size Cat Litter Box No Odor & Non Stick & Easy to CleanWhy stainless Steel litter box? stainless will never rust and longest lasting. It will be the only litter box you will ever need or buy. Ergonomic design as we rounded The edges so there are no sharp sides. Some Brown residue is normal on the stainless pan as the result of our bending Machine for fully rounded edges for their safety. We ensure that its new in condition and perfectly normal Never absorbs any odor, stain and rust free plastic litter