Collapsible Plastic Pet Stairs 4 Step Ladder for Small Dog and Cats - Costway
Amazon.com: Rubbermaid Portable Single Step Plastic Roughneck Small Step Stool Elevated Platform for Home Kitchens, Living Rooms, and Bathrooms, Gray (4 Pack) : Office Products
Rubbermaid 1-Step 300-lb Capacity Gray Plastic Step Stool in the Step Stools department at Lowes.com