Sports, Balls, rubber bladder, ball bladder, butyl bladder 1. Material:Natural Rubber or Butyl Rubber 2. Available size:Soccer bladder 3#4#5# 3. Ball Weight:According to the customer request 4. MOQ:100pcs 5. Certification available:Quality assurance system 6. Packing Details:Strong carton/Nylon Bag 7. Production Capacity:1250,000pieces per month 8. Payment Term:T/T, L/C, western union 9:Delivery time:15~20 days after confirming the order, Sports Balls ...