Set of 6 Jumbo 5" Light Up Puffer Ball Yo-Yos by Pudgy Pedro&rsquo;s Party Supplies Instant party recipe: 1) buy this bundle of 6. 2) grab 5 friends 3) hit the lights. Let there be light: light-up core responds to motion, flashes red and blue. Large and in charge: jumbo, 5" diameter puffer balls in vibrant shades of neon. Lots of ups and downs: slide your finger into the loop on the stretchy string and toss it like a yo-yo. A tactile sensation: squishy and stretchy and gooey and bouncy and tentacley and fun!