Dowsing rods are tools traditionally used in the practice of dowsing, which is believed to help locate underground water, minerals, or other hidden objects. Typically made of metal or wood, these rods are often shaped like a "Y" or a straight stick. Users hold the rods loosely in their hands, and as they walk over an area, the rods may move or cross, indicating the presence of something below the surface. While some people swear by the effectiveness of dowsing rods, scientific studies have not consistently supported their claims. Critics argue that any movement of the rods is likely due to the ideomotor effect, where subconscious muscle movements influence the rods' position.