Package Content
Main unit: 20 pieces
Size 1: Outer diameter 0.7 inches (18.5 mm), Inner diameter 0.5 inches (13.7 mm), Height 0.6 inches (14.5 mm).
Size 2: Outer diameter 0.9 inches (22.2 mm), Inner diameter 0.6 inches (16.1 mm), Height 0.7 inches (19.0 mm).