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”
Total Circumference: 9.5”
Usable Length: 3”
Smallest Usable Circumference: 5”
Largest Usable Circumference: 6.3/4”
Inside Diameter:1.1/4”
Weight:  3.5 oz.