This is One set of 12-Piece Metric Combination

Ratcheting Wrench with Open ended and flex-ratchet ring heads Design. They are made of Rugged heat treated chrome vanadium construction, with Corrosion-resistant chrome finish, and 4 layer of anti-rust process.

Features:
Precision-machined 12-Point box ends and 72 teeth ratchet mechanism 180° pivoting flex head with a 5 degree gearing 180° Pivoting heads allow work to be carried out in awkward places

Comes in a tool bag for storage and easy transportation
Specifications:
Main material: 45# steel
Gear material: Chrome vanadium steel
Spanner Sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 & 19mm.