HENCO Badminton HI 5 / UNO 550 Shuttle Cock (Pack of 6)

Design: Precision designed for accurate flight performance. Flight Pattern Developed using the flight timing of feather shuttlecocks
four to five times more durability than an ordinary nylon shuttlecock
Skirt Material: Nylon, Proper speed: Slow, Range of Temperature: 22 to 33 degrees. shuttlecock recovers in only 0.4 seconds and 0.006 seconds faster than the recovery of an ordinary shuttlecock.