The li ning a plus 300 are designated by the badminton world federation as international match shuttles these quality shuttlecocks deliver unsurpassed performance and durability they are made from natural cork and first grade goose feathers ensuring a quicker and much more consistent flight the a plus 300 are used by the chinese national badminton team and are designed to withstand tremendous shocks received with todays high power high speed badminton rackets they are supplied as a 50 doze