Color of tube Cap: Blue, Box contents: 6 shuttlecocks Proper Speed: MiddleDeveloped using the flight timing of feather shuttlecocks, Mavis Nylon shuttlecocks are precision designed and manufactured to provide accurate flight performance 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 0.08 seconds faster than the recovery of an ordinary shuttlecock