The set, from the company Bigstren, consists of sockets made from high-quality chrome-vanadium steel, a feature that gives them very high durability. Chrome-vanadium steel is resistant to corrosion, deformation, and cracking. They come with a plastic storage and transport case.

The set includes:

• 1 two-way ratchet - 3/8", all metal
• 14 socket head 1/4" metric - 4/4.5/5/5.5/6/7/8/9/10/11/12/13 mm
• 14 socket head 1/4" inch - 5/32, 3/16/7/32, 1/4,9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2, 17/32,9/16"
• 3 socket head 1/4" inch octagon - 1/4.5/16.3/3.8"
• 2 socket head 3/8" inch - 15mm, 16 mm
• 1 extension 1/4"*3/8" - Allen key
• 1 extension piece 3/8"
• 1 attachment inch 3/8" - 21 mm
• 1 plastic gear washer
• 1 square - 6"
• 1 plastic case

Features:

• Made from high-quality chrome-vanadium steel
• Corrosion-resistant
• Resistant to deformations
• Plastic case
• 40-piece set