Collapsibles Cat Cages Indoor,Portable Cats Enclosures 2/3/4-Tier,Heavy-Duty Cat Playpens with Universal Wheels,Large Metal Animal cage Pet Crate No Assemblys Required (Black, 4-Tier (No Litter Box)) Black 4-Tier (No litter box) is up for auction in Pet Supplies. The current bid is $51.00, 82% below the $289.00 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.