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 open.

Pure Platinum Cure Silicone

Lube safe: water-base, oil base, water/silicone hybrid, silicone lubes

Cleaning: detergent and hot water, dishwasher, or soak in bleach-water solution

Total Length: 4.5"
Total Circumference: 11.5”
Usable Length: 3.5”
Smallest Usable Circumference: 6”
Largest Usable Circumference: 8”
Inside Diameter: 1.5”
Weight:  5.9 oz.