Star Trek Tribble, Tan - New Dual Sound Version - Large Size The Softest Electronic Tribbles Ever Made! High Quality Plush features the Original Sound FX from the Classic Star Trek episode, "The Trouble with Tribbles" Large Size Tribbles are 7" x 5.5" x 4.5" Sound and Vibrating FX activated by BOTH Touch and Sound - Clap and The Tribble will come to Life! Hidden Velcro Pouch Safely Hides Electronics