Description from SquarePeg website:
Mega Milk’it is a girthy plug smooth on one side, but highly textured on the other. Can be worn both directions: texture forward for more focused prostate stimulation, or rearward for a full feeling with gentle pressure to the prostate. The nodules focus the pressure being applied by the opposite wall of the rectum into just a few points. At this size and the texture, the Mega Milk’it can be a little interesting getting in and out so being opened up with another toy first is a good idea.
The circumference noted is that of the widest part of each toy.
This plug is just under 6" insertable and has a maximum circumference of 7"