Plug your butt 'til you bust your nut with ERGO, the pure silicone ergonomic butt plug from OXBALLS. ERGO features a smooth silicone surface with a flared base and an ergonomic kidney-shaped design. The soft silicone flanges at the base ensure that ERGO stays snugly between your cheeks for an all-day stretch your piggy pucker won't forget. ERGO is available in various colors to mix and match with your favorite gear or dungeon decor, or you can go for the classic BLACK ERGO butt plug—after all, everyone looks good in black. Each unique ERGO BUTT PLUG is hand poured in our factory, so no two plugs are alike. For an extra squishy option, try our super comfortable SOFT ERGO butt plug, made from blubbery silicone that's stretchy and soft to the touch.