Official size 6 basketball suitable for indoor and outdoor basketball for boys between 11 and 12 years old and girls over 11 years old. Why choose the Tarmak BT100 size 6 ball for learning to play basketball? The Tarmak BT100 size 6 basketball is perfect for learning to play. Ball handling is enhanced thanks to the deep grooves and pebbled cover. Its outer cover is made from foam plastic to give it a more cushioned feel that is softer on contact. Its 100% polyester filament winding ensures good quality bounce. It is very durable and can be used both indoors and outdoors. What ball size to choose? The ball size depends on the player's age and sex. Size 1: From ages 2 and up Size 3 to size 5: Girls or boys ages 4 to 6 / Baby basket under 7 age group (depending on levels and clubs) Size 5: Boys and girls ages 7 to 10 / Under 9 and under 11 age groups Size 6: Boys ages 11 and 12 / Under 13 age group Size 6: Girls - Women of all ages over 11 Size 7: Boys ages 13 and up, and men. With an outer cover made from foam plastic, it is robust and offers good ball feel. Traction Good grip thanks to the deep channels. Lasting air retention Can go longer between re-inflations thanks to a bladder made with 30% butyl. Ball touch The foam rubber cover gives it a pleasant feel. Bounce Good bounce as the bladder is enveloped in 100% polyester Durability Durable thanks to the foam plastic cover. Official size 6 basketball suitable for indoor and outdoor basketball for boys between 11 and 12 years old and girls over 11 years old.