Hart to move Alert !! Please be aware , the inner tube is NOT so smooth due to the channel is too long, and direction changed, it has so many balls in a single tube, which will block the balls to slide. Please be caution, double thinking before you buy.
Invented & Printed By Gao Size : ~15cm Weight: 243.4g Marbles : 12mm diameter, random color
PS: As it is a mod puzzle, it takes about 1-2 weeks to finish it. Please wait for a while, then we can send out your order.
