Swivel joint easily rotates 360 For impact drive tools and impact sockets Maximum tilt angle is about 30 degrees Made from chrome vanadium alloy steel 1/4" Female to 1/4" Male 3/8" Female to 3/8" Male 1/2" Female to 1/2" Male The actual product may be a little different from the pictures due to different monitors display. Four advantages Surface phosphating: Surface carbon black phosphating treatment, anti-corrosion and rust prevention, durable. High-quality chrome molybdenum steel: Overall use of chrome molybdenum steel, forged material, high hardness, high torque. Advanced technology: Modern ultrasonic automatic flaw detection system using computer-controlled data processing. Heat treatment: Overall heat treatment. Improve product quality and work safely. Color: Black Quantity delivered: Set of 3becomeveryrich