Here is a page from TH that shows the pictures of what they look like.

http://www2.towerhobbies.com/cgi-bin...?&I=LXDT86&P=7

You snap them over your connectors to keep them from coming apart. Some people use electrical tape or waxed dental floss. All three work well. Parson Clips are just a bit faster to apply and they cost more. You can get them for most connector wires, Futaba, Jr, Hitec etc. The benefit of using these on the aileron connection is that they easily allow you to separate the connection after flying so you don't have to cut dental floss or remove tape. Shoot, when I was new I didn't use anything. If you think about it, this is the one connection that gets the most wear because we are constantly installing the wing and removing it each time we go to the field. Over a short period of time the friction that holds the connectors together wears from installing and removing and the connection will easily just come apart, as it did on my Giles. Luckily it was just loose, and I got her down without a mishap, but could have been a total loss. When you consider the cost, it's a minor thing that can make a big difference. I now use them on all my connectors when assembling.

Thanks for using this information on your site. Thats what it's for. Hope it will helps those that can use the info. A good bit of time and thought was put into the article. Not perfect, but hopefully it will at least provoke thought and questions for people to discuss with the more experineced people at the field.