Newton's Cradle

This is one of the Christmas presents I gave to my husband!  I have been meaning to get him a Newton's Cradle for a very long time, but I never actually got around to it.  I am so glad that I finally got it!  He loves it!  :)

Tarcil couldn't figure out how to make it work... but he liked looking at the shinny balls!  Hahaha  :)