The Doc Johnson standard series butt plugs. 'One size fits most' These butt plugs have a large sized base to make sure it stays in place. Includes a 90 day warranty registration card from manufacturer. Available in three different sizes, small, medium and large. Small is roughly 1" in diamater and 4+" long with base, base is roughly 2 1/2" wide. Medium is roughly 1 1/2" in diamater and 5 1/2" long with base, base is roughly 2 3/4" wide. Large is roughly 2 1/2" in diamater and 5 3/4" long with base, base is roughly 3 1/4" wide.