Description: This Is A Set Of 4 Adapters And Reducers. Heavy-Duty Chrome Vanadium Steel Construction Is Designed For Use With Screwdrivers And Wrenches. A Black Oxide Finish Makes Each Piece Anti-Corrosion And Highly Durable. Relaxation At; Ball Spring Keeps Your Sockets Stationary And Secure. &Nbsp; Features: 1. Socket Adapters Are Made Of Heavy-Duty Chrome Vanadium Steel For Durability. And Long Life. 2. The Surface Of Each Adapter Is Finished By Electroplating And Blackening, Which Guarantees Resistance To Corrosion. Corrosion. 3. The Body Of The Adapter Is Designed With A Trigger Pull. Ball Spring And A Small Hole To Keep Your Casings Stationary And Secure. 4. There Are Four Socket Adapters In Different Sizes And You Can Use Them For Different Sockets. 5. Common Size Combinations Multiply Range And Capacity. Many Socket Sets. &Nbsp; Specifications: Material: Chrome Vanadium Steel Surface Finishing: Electroplating, Blackening Quantity: 4Pcs Color: Silver, Black (Optional) Weight: Approx. 133G Size: 1/2" (Square Hole) - 3/8" (Square Head) 3/8" (Square Hole) - 1/4" (Square Head) 3/8 "(Square Hole) - 1/2" (Square Head) 1/4" (Square Hole) - 3/8" (Square Head) &Nbsp; Package Includes: 4 X Socket Reducers &Nbsp; Package Including Package Includes: 4 X Socket Reducers