The provided source material does not describe Ulu as a city in Kenya. Instead, it identifies an ulu as an all-purpose knife traditionally used by Inuit, Iñupiat, Yupik, and Aleut women.
These knives are utilized for various tasks, including skinning and cleaning animals, cutting food, trimming blocks of snow or ice for igloo construction, and cutting a child's hair. They are also commonly sold as souvenirs in Alaska.