It looks like a toy but it is not. This YoYoFactory Hubstack Afterglow...
The only limit is your imagination! With the Extra-Long YoYoFactory strings you don’t have limits to innovation in your play. Package of 10 strings of 100% Polyester.
Pack of 10 white strings 100% Cotton from YoYoFactory.
Pack of 5 strings for the YoYoFactory Mighty Flea and Big Deal.
Pack of 100 strings for the YoYoFactory Mighty Flea and Big Deal.