... in producing outdoor sport products,our main items are Pro scooter,Kick scooter,Tri-scooter,Skateboard,Flashing roller etc.The generic products we developed ... R&D team,every 2 months our company public a new product which meets our current custmer's required,as well ... .Precision CNC ALU 6061 wheel core 90A PU cast on, ABEC-9 bearings, ultra strength durable and rebound balance. Size: 100*24mm ...