Spindle whorl

A spindle whorl is a disc or spherical object fitted onto the spindle to increase and maintain the speed of the spin. For ages the whorls have been made of many different materials: amber, antler, bone, coral, glass, metal (iron, lead, lead alloy), and wood (oak). Some types of local materials have been also used, such as chalk, limestone, mudstone, sandstone, slate, and soapstone.