Abstract: A dual string yo-yo including a dual string interconnection of the yo-yo body to the fingers of an operator and a yo-yo body comprising enlarged end portion and an enlarged central portion separated by two necked portions whereupon the dual strings are separately wound. The yo-yo body may be of solid or structured composition and furthermore may include mass distributions devised to enhance the rotational inertial characteristics of the yo-yo. A pair of adjustable bandlike string attachment bands is provided to engage a pair of fingers of an operator. Irregular shapes and lighted versions are disclosed.