12.5" tall, 7.5"-12.5" circumference

Wow what a crazy ride, never felt anything like it before. Advanced.

Produced after the Twister came out in response to needs for a big version. If twisting and motion are what you like to feel then this is the toy you need. The angled ridges coupled with the 3 bulges overload you with all kinds of sensations going every which way. The principle behind the ridges is to distribute the pressure unevenly inside, creating the sensation of fingers or knuckles rubbing.

Circumferences for each of the 3 "bulges" are 7 1/2", 9" and 12 1/2 ". Stands about 12 1/2" tall.