"Enjoy a refreshing litter box experience with the Litter-Robot 4 Clean Bundle. You’ll receive Litter-Robot 4—our smartest self-cleaning litter box—plus Whisker accessories, premium odour-control and cleanliness products, and a comprehensive 3-year warranty. Litter-Robot 4 (step, fence, and ramp included) Waste Drawer Liners (25) Litter-Robot LitterTrap® Mat OdorTrap® Packs (6) with Holder All-natural Cleaner Wipes WhiskerCare™ Extended Warranty"