Lid- Made of 316 austenitic stainless steel, the lid is secured via integrated silicone suction cups, a hardware-free attachment minimizes noise, movement, and scratching. Lid does not require removal for daily scooping. Floor Mat- Designed to minimize litter scatter and splashes and protect Litter Litter Box. Less Litter Floor Mat can be used as a food or treat mat. *With the lid attached, the L6M may not provide sufficient headroom for tall adult cats*