The perfect fit! The Booty Bumpers are made of soft SensaFirm material. There are three sizes of plugs shaped like penises. A 4" x 1.25" plug is great for anal beginners. The 5.25" x 1.5" plug is for the more advanced and those just starting on vaginal play. The 6.75" x 1.5" is great for vaginal play or for extreme anal excitement. The base of each plug has a suction cup so you can stick it and let it stick you. How far do you want to go!