Scalable Expansion: Modular splicing design allows for easy expansion, suitable for single or multi-cat households. Quality Materials: Crafted from hardwearing metals and woods for durability and a touch of natural elegance. Adjustable Compatibility: Features adjustable supports to fit various window sill thicknesses for stability. Safety Features: Rounded edges and polished surfaces ensure safety while preventing accidental scratches. Multi-functional Design: Innovative wall-mounted structure turns window sill into a cat sports paradise with a bed and climbing surface.