Manufactured from Chrome Vanadium steel, heat treated and hardened for durability. Open jaw and Wall Drive ring combination. Chrome polished with mirror finish for corrosion resistance. Jumbo size suitable for agricultural and industrial use. LIFETIME GUARANTEE FROM A REPUTABLE UK COMPANY – Founded in 1978, Sealey is a large family run business with a vast product range. Trusted by professionals, all Sealey products are thoroughly tested and backed by unrivalled aftersales service., Weight: 3.8801358112 pounds, Manufacturer: Sealey