The Stainless Steel Vibration-Free Bead Chain is about 5 1/2 inches long. The Stainless Steel Pendulum Bob is about 2 inches long, 9/16 inches in diameter, and weighs 25 grams. This would be considered a medium weight metal pendulum.
The EXTRA LARGE Chamber is about 7 mm (9/32″) diameter and 9 mm (3/8″) high. More space is available in the chamber cap.