YONEX Mavis 7 Nylon Shuttlecock Mavis 7 Nylon Shuttlecocks are designed to provide accurate flight performance. When smashed, a Mavis Shuttlecock recovers in only 0.002 seconds which is about 0.008 seconds faster than that of any other shuttlecock. The combination of close-to-feather shuttlecock performance and four to five times more durability than an ordinary nylon shuttlecock makes the Yonex Mavis series the most cost effective choice for practice sessions. Recovery Time When smashed, a MAVIS shuttlecock recovers in only 0.02 seconds. This performance is just 0.005 seconds slower than a YONEX Feather shuttlecock and 0.008 seconds faster than the recovery of an ordinary shuttlecock. Flight Pattern Developed using the flight timing of feather shuttlecocks, Mavis Nylon shuttlecocks are precision designed and manufactured to provide accurate flight performance.