• Thickened Corrugated Cardboard – The cardboard is strong and wear-resistant, which releases the cat’s claw-grinding nature and does not hurt the cat’s claws.
• Double-layer Design – The upper and lower layers can be used for two cats to play and rest at the same time.
• Curved Cutting Process – Each piece of cardboard is cut with a curved shape, which will not scratch the cat, so that the cat can play more at ease