1.DOUBLE SIDED THICKENED CORRUGATED PAPERBOARD: The material of the product is made of double sided thickened corrugated cardboard, so that cats can feel to sharpen their claws and have a longer life. 2.ARCH DESIGN: The arch design makes the product more stable, not easy for cats to overturn, not easy to deflect, so that cats can play to their hearts' content. 3.Top Sisal Ball: The top of the product is equipped with a rollable natural sisal ball, which can be used by cats to sharpen their claws, or for cats to play by themselves, which saves your time in teasing cats. 4.EXQUISITE HANDMADE CRAFT: The products are all handmade by real people, the sisal is tightly wound and exquisite craftsmanship, so you can use it for your cat with more peace of mind. 5.Two scratching boards: the product adopts double scratching board opposite design, which can be used by multiple cats at the same time to play, more suitable for multi-cat family. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.