Material: Silicone Colour: Black Biggest Plug Length: 12.5 CM ( 5.1'' ) Medium Plug Length: 9.6 CM ( 3.9'' ) Smallest Plug Length: 8 CM ( 3'' ) Biggest Plug Diameter: 2.7 CM ( 1.5'' ) Medium Plug Diameter: 2.8 CM ( 1.1'' ) Smallest Plug Diameter: 2.2 CM ( 0.9'' )