Rival Crock Pots are available in sizes ranging from 2.5 quarts to 7 quarts, as of 2015. The smallest slow cooker serves three to four people, and the largest unit serves nine or more.
Rival slow cookers are available in many styles, including manual devices, digital units and portable cookers with locking lids and carry bags. Digital models allow users to program the slow cookers to cook on low or high for several hours, shifting to a warm setting when the food is finished. The iStir digital unit includes a paddle attachment that automatically stirs soups and stews every 30 minutes.