1. type: valve oil seal, wiht one or two spring 2. many models: ... requirements.5. small order quantity: 1000pcs6. sample is OK to send you for checking the quality. GoodsValve oil ... , CD70,etc.Regular colorBrown, green, blue,etc.Oil seal MaterialNBR, FKM, etc.Spring materialStainless steelSpring numberOne or two ... durablePackingbag, blister card , or as required Valve oil seal for motorcycle