Features and Benefits:

• Heat-treated chrome vanadium steel
• Tools are longer than standard combination wrenches to enable access to hard to reach places
• Includes sizes: 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm wrenches.
• They have a smooth finish

This is a 13 piece wrench set. It is metric sizing. Wrenches have a high polished finish.