Rainbow Dildo Knob Job from Hott Products. Get down and play in a colorful way with Knob Job Rainbow silicone sex toy! This super fun colorful toy will be sure to liven up intimate play time with its realistic shape head, and super ribbed contoured shaft. Sliding this toy in and out will be sure to bring waves of erotic pleasure like never before! Make a game out of it and see how many color rings you can take on as you pound it in deeper and deeper while evoking screams of erotic passion! Get down and play the rainbow way! 8.5 inches long. Phthalate free Silicone.