Upgraded cat entertainment: magnets on both ends let you connect the scratching boards into large tunnels and a variety of shapes, unlocking ways to play for households with multiple cats. Practical design: the structural design keeps colorful bell balls in place. Solid materials: made from corrugated paper, this cat scratching board folds to a compact size for easy storage; machine cut with smooth rims that won't cut your cat's skin or jam claws. Sturdy Soullon: tight gaps and a mesh honeycomb design reduce ball loss; built from strong, eco friendly corrugated paper. Use scenarios and applications: Multi cat homes: connect modules with magnets to create a modular play network of tunnels and shapes, encouraging shared play and reducing boredom. Indoor enrichment: set up a large tunnel with bell balls for engaging activity during rainy days or when outdoor access is limited. Space saving and rotation: fold flat after play and store in a closet or under furniture; rotate configurations to maintain interest.