Hard rubber or silicone Not good, small opening, way to small and thick hard at entry doesn’t expand, I cut opening larger to fit, but still doesn’t feel soft. Vib
Non Sticky and Lasts!! Finally a lube that is not sticky and actually lasts! This is by far our favorite lube, we tried several others “natural” or “Organic” lubes and
Tom from United States Got these on recommendation from a friend, I wasn’t disappointed. So thin you can barely tell it is there. Very comfortable and fits well in medium.