I love these beads! They are smooth, flexible and just firm enough to keep their shape. Its made out of jelly, so there is a nice smooth feel. The package even came with some lube and a little bullet that vibrates the whole set of beads. The vibration helps me relax so I can take the entire set of beads in my anus. The balls get bigger as I get it further in, so the first time I was not able to get past the third ball. The bullet is pretty powerful on its own and sometimes I use it by itself.