circular cap: 3/4 in x 4 in x 1 1/8 in; metal tube: 1 1/2 in x 1 3/8 in x 1 1/2 in
This record contains a single channel tube part, de assembled into two parts. One part is a metal tube, the other part is a circular cap which fits into the tube. The outside of the cap has several small thin wires attached. The inside of the cap has three square reflective pieces attached, with one detached. The letter "A" is engraved on the side of the metal cap.