1.differ sizes and differ colors 2.Odorless&nontoxic,unbreakable & durable 3.Welcome OEM ! 1)Has excellent oil resistance, near the oil in a long time under thedifficult function of deformation, cracking, decomposition and influencetheir physical function, can still work well.2)Tightness, used in electrical equipment, there will not have leakage.Easy to install, affordable.3)High-quality test, ...