Size 6 (28.5 inches / 72.4 cm circumference) — sized between a women's 5-on-5 ball and a men's 5-on-5 ball; Weight equivalent to a men's 5-on-5 basketball (approximately 580-620 g); FIBA-approved 3x3 ball with grooved grip pattern designed for outdoor use
Why people argue about this
People often assume that the ball's circumference is exactly 28.5 inches based on FIBA's official description, but they overlook the fact that it can vary within a range of just half an inch—between 28 and 29 inches. This precision issue leads to misunderstandings about how much larger or smaller the ball might be in practice compared to what’s stated.
