[Product]  Beyblade Grip

Can anyone tell me where  can I buy a grip for Beyblade Burst and what grip should I get?
I think the best place to buy grips are online, on like Amazon or EBay. You gotta be careful though, because people sometimes sell fakes. B-11 and B-40 are my favorite grips. They're both the same, just one's white and gray, and the other is black and white, I think.