Feature 1Durable Material: The extension wrench is made of excellent high carbon steel forging, with high strength and wear resistance. 2Scalable Design: Can be extended and contracted in a limited space, so that the ratchet wrench has room for movement. 3Small Swing Range: The ratchet wrench extender has a small swing range, which saves time and effort in operation. 4With 3Pcs Adapters: Equipped with 3pcs adapters of different specifications, with standard size and high accuracy conversion. 5Simple Operation: Wrench linkage design, combination expansion, simple operation and strong practicability.SpecificationItem Type: Extension Wrench SetMaterial: High carbon steelWrench Length: Approx. 39cm / 15.4inCenter Hole Distance: Approx. 35.5cm / 14inWidth: Approx. 3.7cm / 1.5inThickness: Approx. 1.8cm / 0.7inAdapter Length: Approx. 3.3mm / 0.1inAdapter Shank Diameter: 3/8in to 3/8in, 3/8in to 1/2in, 3/8in to 1/4inSocket Length: Approx. 2.5cm / 1inSocket Outer Diameter: Approx. 1.2cm / 0.5in Package List1 x Extension Wrench1 x Socket3 x AdaptersNote1. Please match the appropriate size before use.2. Parameters are manually measured, there is a certain error.