Introducing Molten's Libertria 3x3 outdoor/rubber basketball, B33T2000. The name Libertria is a combination of the Latin words 'liberta' meaning freedom and 'tria' that stands for three. The combination of these two words embodies the spirit and soul of street ball. Official 3x3 Size and Weight (size 6 with the weight of a size 7) Deep Channel Rubber Surface 12 Panel Design Butyl Bladder Please note: 3x3 is a faster-paced version of the full 5-on-5 game. Basketball for the modern age: fast, brief and dynamic. In short, a show. Matches are a maximum of ten minutes and take up only half a court. All 3x3 basketball games use size 6 basketballs.