Wow. Took some time. As a beginner in the stretching experience, they don't look big coming out of the package. The material is fantastic; enough give to get in there, but once in, it holds me open and contours to, well, everything. Being comfortably spread apart is fantastic. Couldn't be happier. Still working my way up to the 65 but once I'm there, I'll be ordering the next sizes. I'm locked 24/7 and had the GK55 in while wearing a large strapon to satisfy my partner. I was wide open once the tables were turned. Can't wait to be stretched out for the larger sizes!