Features: Made of high quality chromium vanadium steel with finishing heat treatment, sturdy and durable. Mirror surface treatment, good anti-corrosion performance and toughness. This set including 10pcs spanners of different size, 6x7mm, 8x10mm, 10x12mm, 12x14mm, 14x17mm, 17x19mm, 19x22mm, 22X24mm, 24x27mm and 30x32mm. A wide variety size of tools for the best meets your need. Each spanner has two open jaws at both the ends and the jaws are designed so ergonomically that the open ends of the jaws perfectly fits the faces of the nuts. Comes with an organizer pouch, it has each wrench size printed which can help you to protect your wrench and keep them all shipshape. Suitable for DIY or home use, widely used in automobile, bicycle and vehicle maintenance, street lights, computers, electronic appliances or factory maintenance. Specification: Model: TU-1010 Material: Chrome vanadium steel Weight: Approx.1836g/ 64.8oz Size: 6x7mm, 8x10mm, 10x12mm, 12x14mm, 14x17mm, 17x19mm, 19x22mm, 22X24mm, 24x27mm, 30x32mm Package List: 10 * Spanner 1 * Bag Note: Please allow slight error due to manual measurement. Thanks for your understanding. 1、Made of high quality chromium vanadium steel with finishing heat treatment, sturdy and durable. 2、This set including 10pcs spanners of different size, 6x7mm, 8x10mm, 10x12mm, 12x14mm, 14x17mm, 17x19mm, 19x22mm, 22X24mm, 24x27mm and 30x32mm. A wide variety size of tools for the best meets your need. 3、Each spanner has two open jaws at both the ends and the jaws are designed so ergonomically that the open ends of the jaws perfectly fits the faces of the nuts. 4、Comes with an organizer pouch, it has each wrench size printed which can help you to protect your wrench and keep them all shipshape. 5、Suitable for DIY or home use, widely used in automobile, bicycle and vehicle maintenance, street lights, computers, electronic appliances or factory maintenance.