Features and Benefits:

• Chrome-Molybdenum alloy steel
• Complete with high quality metal case
• Lifetime Warranty against defects in materials and workmanship

Set includes sizes: 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, and 44mm.