Luminous Responsive Yoyo, yoyo balls glow K1-Plus come with regular flating bearing<br>made by ABS, Style String Trick (1A, 3A, 5A), Durable and has high performance<br>Keep The Noctilucent yoyo under the light or in the sunlight for a few minutes to charge the glow effect<br>Heavier than before, and have more fun without weighting rings. A perfect toy for kids, friends, families, etc; Recommended for Kids Daily Practicing or Competition.<br>If There is A String Get Stuck: 1.Remove the string firstly 2.Take a look at whether the ball is loose and the two hemispheres must be tightened well 3. Attach the string properly.(The most important thing)<br>Applicable moves: (1A, 3A, 5A)<br>Weight: 65g<br>Diameter: 51.03mm<br>Ball width: 41.01mm<br>Shaft width: 4.38mm<br>Bearing: 8-ball U-shaped shaft<br>Screw: M4*16mm<br>Colour:blue / green<br>Material:ABS<br><br>Package Contents:<br>1 * ball<br>1 * gloves<br>1 * velvet bag<br>5 * rope (random color, specified color not accepted)<br>Only the above package content, other products are not included.<br>Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.