A small bead has a round flat shape and biconical hole in the center. On some of such items we can see some traces of sewing. There are 6 such items in the Ust'-Kova collection.
Traces of treatment are clearly seen on the faces. The hole is made with a reamer from both sides of the bead. There are two items in the collection that have planes formed with grinding. Their contour is made properly. The item is grined on the entire surface.
One of such items has some traces of contact with soft material and some traces of sewing, probably, to clothes.
Diameter - 3,35 mm
Thickness - 1,45 mm
Diameter of the hole - 0,54 mm