Marudai is a traditional Japanese tool used for making obijime, which are decorative cords worn with obi (sashes) in traditional Japanese clothing. The marudai is typically a circular wooden stand that allows artisans to braid threads efficiently. The process involves using a series of bobbins and a specific braiding technique, often resulting in intricate patterns. This craft is an important part of kimono culture, showcasing the skill and artistry involved in creating beautiful accessories that complement traditional attire.