Solid black plastic eyes with shanks measure 6mm (almost 1/4 of an inch) in diameter, about 1/2 inch in total length and they come with plastic washers. Push the eye part though the fabric then push on a washer on the other end for a secure hold.
Great little item for dolls, bears and other small stuffed critters. Not recommended for use for items for very young children or for toys made for pets.
These 6mm eyes come plainly bulk-packaged as shown with 100 pieces per package (100 eyes and 100 washers.)