With the amazing success of their Type X String YoYoStringLab has now formulated a new 'signature string' for 2003 World Champion Johnnie DelValle.
Yoyofactory Replacement String (Pack of 5) - Yoyofactory India
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YoYo String Lab - Ammo Yo-Yo String - Thick, Fat - 50 Pk (White), Yo-Yos - Canada
eh - YoYoExpert
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How to String a Yoyo: 12 Steps (with Pictures) - wikiHow
Yo-Yo String Lab AMMO – YoYoExpert
Yo-Yo String Lab AMMO – YoYoExpert
YoYo String Lab - Ammo Yo-Yo String - Thick, Fat - 10 Pk (Firecracker)
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From Yo-Yo String Lab, this is the signature string of World Champion, Johnnie DelValle. Ammo is a thick version of Type X with the tension tweaked to
YoYo String Lab - Ammo Yo-Yo String - Thick, Fat - 10 Pk
Yo-Yo String Lab Sampler Pack - A2Z Science & Learning Toy Store
YYF SuperNova by YoYoFactory - YoYoExpert