This large chamber pendulum is BEARING BALANCED™. That means the pendulum chain rotates and swivels on a bearing that is inserted into the top cap(chamber cover). This results in a balanced swing that keeps the pendulum point, or bob, always aligned with the chain while swinging . This movement provides an instant and sensitive response. This alignment is excellent when using charts, always pointing in harmony with the arc of the swinging pendulum.
The chain is about 5 1/2 inches long. The pendulum bob is about 2 3/16 inches long, about 1/2 inches in diameter, and weighs 17 grams. This would be considered a medium weight gemstone pendulum.
The chamber is about 7 mm (9/32″) diameter and 9 mm (3/8″) high. More space is available in the chamber cap.
The pendulum metal material is nickel plated brass. The chain VIBRATION-FREE nickel plated brass.