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. 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