There are a few hollow butt plugs out there, but none as stupid hot as PIG-HOLE…shaped so it fits your hole like it was custom fit…made from OXBALLS skin-flex platinum silicone--the only material that feels like skin, warms up to your body temp fast, has enough strength to keep your butt-pucker open, and is still soft enough inside to fuck…and fuck…and fuck… Total Length: 17 cm (6.3/4”) Total. Circumference: 37.5 cm (14.3/4”). Usable Length: 12.7 cm (5”). Smallest Usable Circumference: 20.2 cm (8”). Largest Usable Circumference: 26 cm (10.1/4”). Inside Diameter: 4.8 cm (1.7/8”). Weight: 396 g (14. oz).