3X UNIVERSAL IMPACT SOCKET JOINT 3/8" 1/2" 1/4"DRIVE WOBBLE SWIVEL EXTENSION NEW Features: *100% Brand new and high quality *Made of high quality material, more durable. *Widely used in various scenes, bicycles, automobiles, various mechanical car repairs, etc. *Phosphate coating prevents rust and corrosion and prolongs life Specifications: *Color: Black (As Pictures Show) *Material: Chrome-molybdenum steel *Dimension: 3/8, 1/2 and 3/4" drive connectors(Approx.) Size: 1 / 4 inch interface (6.3mm), length 44mm, bottom hole width 6.3mm The length of 3 / 8 inch interface (10mm) is 54mm, and the width of bottom hole is 10mm 1 / 2 inch interface (12.5mm) length 70mm, bottom hole width 12.5mm Package Contents: 3pcs Set Sockets NOTE: 1.Please allow slight 1-3cm difference due to manual measurement and a little color variation for different display setting. 2.Please let us know if there are any problem before you leave feedback or open a dispute.We will solve any problem as soon as possible .Thanks for your understandings.