Since prehistoric times, human beings have decorated their daily items such as tools, utensils, pots and fugitives by applying ornaments with various techniques. These decorations are not only haphazardly but also systematically and as works of art. Seyitömer Mound is located 30 km northwest of Kütahya Province in the north of Afyon-Altıntaş-road in Seyitömer Town of Kütahya. Nine years of uninterrupted excavations were carried out by the Kütahya Dumlupınar University Archeology Department in Seyitömer Mound. During the excavations carried out in Seyitömer Mound , spindle whorls dating back to the Middle Bronze Age and used in rope spinning are quite common. Decorations in various compositions were applied on these finds using the scraping technique. These decorations are divided into groups as Mixed Composition, Bow, Line, Angle, Zigzag and Star, Point, Nail, Ring, Wave, Radial Decoration. In this study, in Seyitömer Mound spindle whorl finds BC. twenty one spindle whorls belonging to the 2nd millennium and decorated (marked) with "arc-shaped" decoration were studied. In this spindle whorls group, many compositions have been created from arc-shaped lines. These compositions were mostly made in groups of nested double-triple-quadruple arcs, four-five. In the study, drawings of Seyitömer Mound bow-shaped spindle whorls, their location, dimensions and descriptions were added as a catalog. In addition, its contemporaries and similar peripheral centers are specified with a compared bibliography. The aim of the study is to include this group of finds, which is important for archaeological research, into the literature.