This is a well made product, though the vibe isn't up to much (noisy, but not particularly effective).
While it slides in well (glass) and mostly feels great, it doesn't seem to 'fit' too well. The spacing between the bulges isn't quite right. Before the bulge, and the perineum stimulator doesn't even touch, but there's not enough stem AFTER the bulge to keep it in hands free. It's ok if sitting on it, but otherwise, the fit needs some work.