PRACTICAL & FUNCTIONAL: Multi-Layer Design is Great For Multiple Cats & Adventurous Kitties STYLISH DESIGN: Cozy Plaid Fabric Adds Style To Enhance Home Décor ENGAGING & FUN: Built-In Dangling Toy Occupies Your Kitty with Endless Entertainment STURDY: Heavy Duty ABS Joints Firmly Hold Pipes In Place for Endless Use VERSATILE: Easy-To-Assemble, Buildable Design - Attaches To Other Kitty City Modular Products!