Valve stem oil seal: 1. type: valve oil seal, wiht one or two spring 2. many models: CG125, JH70 ... to send you for checking the quality. GoodsValve oil sealModelCG125, CD70,etc.Regular colorBrown, green, blue,etc.Oil seal MaterialNBR, FKM, etc.Spring ... requirementOEM serviceAvailableFeaturesGood sealing, durablePackingbag, blister card , or as required High Quality Valve Stem oil seal for motorcycle