Henrys Neon Yo-Yo String - Set of 6 Polyester YoYo Strings

Polyester Multicolor YoYo String, Bundle/100

Replacement Yoyo String - 100% Polyester – YoYoTricks.com

Yellow Yoyo

Duncan Yoyo Strings

Yo-Yo's in Novelty Toys

Henrys Yo-Yo Strings Neon Yellow by : Euro-Yo: Toys & Games

Polyester YoYo String, Bundle of 100

Yellow Yoyo

Yellow Yoyo

100 yo-yo strings - NetJuggler

Polyester YoYo String, Bundle of 100

Yo-Yo's in Novelty Toys

Coloured yo-yo string - NetJuggler