Description of graphical content is included between Description Start and Description End. Transcript Start Narrator: When the video begins, we see Cameron seated in a stroller with his brother Hollis kneeling before him. Throughout the activity, Hollis stays in close physical proximity with his brother. Hollis and Cameron each have a bumpy, noodle ball with an eight-inch flexible strand attached to it. They mouth the ball. They then explore the space between the bumps with their index finger. [Adult & children's voices in background] Narrator: Cameron and Hollis hold the ball by the flexible strand and twirl it in front of them. Cameron puts the string in his mouth, briefly, then once again explores the ball with his fingers. Hollis does the same. Cameron rolls the ball around, while holding it with his index finger, causing the string to flip back and forth, before mouthing the string briefly. He seems to notice that his brother is imitating him. Cameron takes a short break and turn his face into the side of the stroller. Cameron bites on the whole ball and looks at his brother doing the same thing. [Child in background vocalizing loudly] Hollis and Cameron twirl their balls by the string and bump them together. Both seem to be smiling. Fade to black.