Grandma Shark's cat climbing frame uses E1 grade particle board as the main material, and the outside is covered with soft flannel, and sisal is wrapped around some pillars. Is the best place to provide cat entertainment and rest Why do cats need a cat climbing frame? · No fixed play area-nowhere to vent energy · No grinder tool-scratching sofa furniture · The scope of activities is small and uninteresting-easily obese and sick · Can't stretch the body-remove foreign objects from the paws