Dings

After delivering the eight cats to Ding, Ding will delightfully reward your devotion with Dings.

Dings is just a normal male cat who weights 7 lb in your inventory.

In-game description
"Dings, as he is named, is a small tabby cat acquired from the wild mage Barad Ding. Dings alternates his time between sleeping and hunting for "presents" to deliver to you."