[Fit for Bbs01 Bbs02] Designed for optimal performance and perfect fit for mid motor bbs01, bbs02 models.[Protective Function] Excellent sealing to prevent water or dust, enhancing security for your mid motor.[Essential Part] Vital for boosting mid motor functionality and ensuring a smooth riding experience on your electric bike.[Easy Installation] Tailored design for bbs01 bbs02 makes installation a breeze, suitable for all skill levels.[Durable and Sturdy] Long-lasting rubber material ensures reliability and durability for a secure .Spec:Item Type: Hall Seal RingMaterial: RubberWeight: Approx. 6g / 0.2ozPackage List:4 x Hall Seal Ring