R2FG is a young Chinese company founded in 2017. Its full name is "Rotation To Fight Gravity". We were very impressed with the idea of a non-standard 20 ball bearings. All yoyo manufacturers today use very similar C size bearings. R2FG got idea to use two rows of balls to change the size of the bearings, making their yoyos spin longer and more quietly. Also yoyos with this unique setup feel very fast and cotrollable on a string.