The yonex mavis 2000 shuttlecocks are five times more durable than an average nylon shuttlecock they have a flight performance that imitates a feather shuttlecock thanks to the innovative wing rib technology the shuttlecocks are perfect for tournament and practice play for the club players they recover in only 002 seconds and are precision designed and manufactured to provide an accurate flight performance the shuttlecocks are supplied as a 1 dozen pack