Plastic, celluloid, glass, possibly jet
Overall (as strung): 1 1/4 x 1 1/4 x 4 1/2 in. (3.2 x 3.2 x 11.4 cm)
Collection of 30 black buttons with metal shanks strung together, all made of various materials and in a variety of shapes and designs.
Due to ongoing research, information about this object is subject to change.