New versions of the popular One Drop "Side Effects" are now available here at YoYoExpert! This unique and one of a kind axle system actually lets you adjust the inner weight and overall aesthetics of your One Drop yo-yo by switching out different versions!

Currently available:

[ - ] Spike Side Effects - 3.2 grams.

[ - ] Dome Side Effects - 3.0 grams.

[ - ] Ultra Light Side Effects - 2.5 Grams.

[ - ] Flat Cap Side Effects - 3.3 grams.