The GEARWRENCH Reversible Metric Ratcheting Wrench Set includes 8 pieces ranging in size from 8mm to 18mm. Made of steel with silver color, these ratcheting wrenches feature a reversible design for added versatility. The set is designed for use with metric measurements and offers the convenience of a ratcheting action for faster tightening and loosening of nuts and bolts. Perfect for home and workshop projects, this set is a valuable addition to any tool collection.