... 1. type: valve oil seal, wiht one or two spring 2. many models: CG125, JH70, GY6,AX100,etc 1.material ... oil, corrosion, and ageing, and superior sealing effect3. single spring or double spring for your choice4. packing: 2pcs per polybag. Or as per ... colorBrown, green, blue,etc.Oil seal MaterialNBR, FKM, etc.Spring materialStainless steelSpring numberOne or two pieces as per yours requirementOEM ...