This Proto Metric Combination Wrench Set includes six pieces ranging from 10 mm to 19 mm in size. The set comes with a convenient roll-up pouch for easy storage and transportation. The wrenches feature a 12 point drive type and are designed for use with metric measurements. The brand, Proto, is known for high-quality hand tools and this wrench set is no exception. It is ideal for automotive use and is a must-have for any mechanic or DIY enthusiast. With its durable construction and compact design, this wrench set is sure to come in handy for a variety of projects.