Multipet Polka Dog Ball w/ Feather Cat Toy 2 balls on header card. Made with natural wool that cats are drawn to wool due to its scent and texture, particularly the oil called lanolin. Lanolin, found in sheep's wool, has a scent that some cats find appealing and reminiscent of their mother's fur. Additionally, the soft, fuzzy texture of wool can satisfy a cat's instinct to suckle or engage with soft, comforting objects.

Lanolin, a natural oil in wool, has a scent that some cats find attractive. This scent is similar to the pheromones produced by nursing mother cats, which can trigger a positive response in some cats.  
Cats, especially kittens, have a strong suckling instinct. Wool's soft, fuzzy texture and warmth can satisfy this instinct, making them want to suckle on wool items like blankets or toys. 
The texture of wool can also be soothing and comforting for cats, especially in stressful situations. Wool cat caves, for example, can provide a sense of security and comfort.