Type number printed on the side opposite the pins.
Connected F.F. socket: 1 1/2 in x 2 1/4 in x 3/8 in; Single F.F. socket: 3/4 in x 2 1/4 in x 3/8 in; overall: 10 in x 6 in x 1 1/2 in
The object contains a bag of sockets. Some have pins on both sides, and other have pins on only one side. The pins vary in shape. One set of sockets are attached, and one set has soldered wires around some of the pins.