Material: Silicone Colour: Black Biggest Plug Length: 9.6 CM ( 3.8'' ) Medium Plug Length: 9 CM ( 3.5'' ) Smallest Plug Length: 7.2 CM ( 2.9'' ) Biggest Plug Diameter: 2.9 CM ( 1.1'' ) Medium Plug Diameter: 2.6 CM ( 1.0'' ) Smallest Plug Diameter: 2.1 CM ( 0.8'' )