-1. Product Brand : HKO badminton shuttlecock -2. Head Material: Foamed Plastic cork, Two/three layers sandwich cork , PU cork are available -3. Feather Material: Goose and Duck Feather at all levels -4. Speed: 74-80 -5. Flight Stability: A+, A, AB, B -6. Appearance: A+, A, AB,B -7. Feature: --A, Nice and straight feather --B, Strong anti-hitting and good durability --C, Good fly status and precise fall point --D, It is suitable to advanced club players, professional training, international toumament and so on --E, Different quality grade are available, so you can choose it as your own level --F, As we have our own factory, so we can provide you the high quality with the competitive price.
Detail about feather...
Shuttlecock feather can classified as four grade , Top class or class A ,class B ,class C ,class D
--Class A or Top Class feather color is the more white. appearance is the more beautiful. feather root is more larger. The thickness of the feather is more thicker. It usually mix sandwich 3layer shuttlecock head together to produce high-glade shuttlecock. such as use to international competition or high competition
--Class B feather color is white. appearance is beautiful. the feather root is a little small than class A. the thickness of the feather is a little thin than Class A It usually mix sandwich 2layer or PU shuttlecock head together to produce high-medium-glade shuttlecock. such as use competition or high professional training
--Class C feather color is white. appearance is beautiful . the feather root is small .the thickness of the feather is thin. It usually mix PU shuttlecock head together to produce medium-low glade shuttlecock. such as use small competition or training
--Class D feather color is a little yellow. appearance have some dirty . the feather root is small .the thickness of the feather is thin. It usually mix PU or shuttlecock head together to produce low glade shuttlecock. such as use to training
---Class A and Class B goose feather usually use to international competition and high competition ---Class C and Class D goose feather usually use to high training ---Class A and Class B cigu duck feather usually use to high competition and professional competition ---Class A and Class B water duck feather usually use to high competition and professional training ---Class C water duck feather usually use to small competition and training ---Class D water duck feather usually use to small training
Detail about speed...
We use Speed 75, 76, 77, 78, 79, 80 instead. There is a 30cm distance between eachspeed. Shuttle speeds are ideal for different parts of the world. For example, shuttles with Speed 76 are used in China during the summer and 77 during the winter months. Shuttles with Speed 75 are good in Thailand,
Speed 76 ,77 in Singapore, Hong Kong and Malaysia, Speed 77, 78 in the U.S.A., Speed 78,79 in Finland, Canada, Korea and Japan. Speed 79, 80 in Australia in winter. Speed 73-74 would only be played in high altitude area as Yunnan Province in China and Colorado Springs in U.S.A. or high temperture area as Johannesburg in South Africa.