The Smart Balls made by Fun Factory are indeed fun as well as a great exercise tool. They are easy to insert and stay in place very well. The Smart Balls can be used during work, cleaning house or whatever you are doing. They are very discreet. The weighted balls move just enough inside the Elastomed casings to provide a stimulating sensation as well. The Smart Balls should not be used anally. The string on the end of the smart balls makes it easy to remove them when ready.

The elastamed on the Smart Balls has a few ribs in it but other than that they are smooth. I think the ribs are a great added bonus for stimulation. I noticed no smell with this toy.

The design of the Smart balls is very good, they are just the right size to be able to stay in place for awhile. They are round with a thin elastamed shaft to hold them together. There is also a string on the end of it to help with removal of the balls. The length and circumference of the smart balls is 4 1/2 inches with a diameter of 1 3/8 inches. The smart balls are definately discreet.

I think the best part of the Smart Balls is the added rib design. The ribbing makes for added stimulation. The shaft that holds the balls together makes this a better exerciser than the single balls as it holds them and they move more as one.

The Smart Balls can easily be cleaned with soap and water. For storage purposes I would suggest someplace that dirt and lint can not get on them. I use a cosmetic bag and also wrap them in a bandana.