STABILITY AND DURABILITY: this flywheel has good toughness,not easy to break,stable and consistent flight performanceHIGH QUALITY MATERIAL: Our shuttlecock is made of selected high quality duck feathers with a durable foam head and provides excellent durabilityFORCE VISCOSE FORCE: each spring is firmly glued to the ball jointEASY TO CARRY: this steering wheel comes with fine workmanship,lightweight and portable,11 pieces in one package to meet your needsGREAT ACCESSORIES: This badminton is very suitable for training and casual games. You can play with your family and friends and have a good time Product s Features: 1. STABILITY AND DURABILITY: This flywheel has good toughness,not easy to break,stable and consistent flight performance. 2. HIGH QUALITY MATERIAL: Our shuttlecock is made of selected high quality duck feather with durable foam head and provides excellent durability. 3. FORCE VISCOSE FORCE: Each spring is firmly glued to the ball joint. 4. EASY TO CARRY: This steering wheel comes with fine workmanship,lightweight and portable,11 pieces in one package to meet your needs. 5. GREAT ACCESSORIES: This badminton is very suitable for training and casual games. You can play with your family and friends and have a good time. Specification: Condition: 100% Brand New Material: spring + cork compound Color: Colorful (As Pictures Shown) Quantity: 11 pieces/lot Dimensions of each ball (L x W): approx. 8.4*5.5cm/3.3*2.2in Weight approx. 162g Packing List: 1 x pack of 11 badminton balls * Badminton racket is not included.