Made of material, durable Fit for Car Bicycle Garage Repair Tools Socket Convertor Adaptor Reducer 3/4 to 1/2 Impact Socket Adaptor CR-MO chrome steel forging, adding chromium vanadium + silver alloy elements, overall heat treatment, impact resistance, strong torque, surface carbon black phosphating, rust resistance and corrosion resistance Type:Socket Convertor Adaptor Applicable Model:3/4 to 1/2 Colour:black Material:Chromium-Molybdenum Alloy Steel Due to different batches, there may be differences in product appearance and printed text, which will not affect use Package Contents: 1 * 3/4 To 1/2 adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.