Whisker Litter-Robot 4 Ramp in Black. This ramps provides easier access for your cat to their litter box while helping to reduce litter tracking throughout your home. Features: - Specifically designed for the Litter-Robot 4 - Textured surface for better grip - Simple, tool-free installation - Durable black finish Condition: New in original retail packaging. The box shows some minor shelf wear, but the item inside is brand new and unused.