This car oil filter has a 3/8 inch external-hexagon socket design which can be applied to 3/8 inch squarehead wrenches and can cope with various working environments. 7pcs in a set, the specification marks are clear, easy to distinguish, and can be used according to actual needs. You can choose according to the inner diameter, easy to change machine filter oil, suitable for various car models. Features: Thickened alloy material stamping molding, high-temperature quenching torque, tool surface polishing anti-rust treatments, with fine durability. 7pcs in a set, the specification marks are clear and easy to distinguish and can be used according to actual needs. Includes 24mm, 27mm, 29mm, 30mm, 32mm, 36mm, and 38mm oil filter socket sizes. You can choose according to the inner diameter, easy to change machine filter oil, suitable for a variety of car models. 3/8 inch external-hexagon socket design, it can be applied to 3/8 inch squarehead wrenches and can cope with a variety of working environments. The inner wall surface design of the polygonal dome can increase the bite ability of the oil filter wrapped, which is a perfect fit to remove filters and filter housings. Easy application, uniform design, and no deformation can cope with small spaces. Comes with a plastics box for convenient storage and is easy to take out with you. Specifications: Name: Oil Filter Wrench Socket Set Material: alloy+plastics Model: 24mm, 27mm, 29mm, 30mm, 32mm, 36mm, 38mm Package size: 250 * 125 * 50mm / 9.84 * 4.92 * 1.97in Package weight: 1290g / 2.84lb Packing List: 7 * Oil Filter Socket 1 * Plastics Box