The GRENPRO Metric Wrench Set is a high-quality tool set made of chrome vanadium steel, known for its durability and strength. This 7-piece set includes both metric and standard wrenches, ranging in size from 23mm to 24mm, with a bolt gauge included for convenience. The polished silver finish adds a sleek look to the set, while the open-end head style makes them easy to use in a variety of applications. Measuring 15.59x7.56x3.11 inches and weighing 5.91 pounds, this set is perfect for home and workshop use.