Jack Accessories: This jack gear set is specifically designed for 3-ton or 4-ton horizontal jacks, ensuring smooth working and long lifespan Sturdy Material: The hydraulic jack gear is made of sturdy metal, offering high durability and hardness to meet your vehicle maintenance needs Application: The gear fittings is an ideal choice for 3T and 4T car horizontal jacks,hydraulic jacks Package Content: Package includes1 Socket tooth gear and 1 Flat tooth gear, providing all the components needed for efficient working Convenient & Efficient: The jack gear is suitable for maintaining the high performance of the jack Specification: Material:metal Size Chart: Length : Small: Socket tooth: 4.2cm/1.65inch, Flat tooth: 4.4cm/1.73inch or Large (optional): Socket tooth: 5.1cm/2.01inch, Flat tooth: 4.6cm/1.81inch Package Includes: 1 Jack Gear Set Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.