According to the description provided in the Ringworld game, male Kzinti average 2.4 meters in height and 200-225 kilograms in mass (they are at least as strong and tough as Gorn, I would imagine). Despite their size, Kzinti are quite agile (this is probably best modeled in CODA by a bonus to the Quickness reaction rather than a modifier to Agility, as they have no greater manual dexterity). They flourish in colder climates than humans and are uncomfortable in desert or tropical environs (Thin-Blooded: Heat as a racial flaw might be in order).