Forged from the finest chrome molybdenum alloy steel? The best choice for strength and durability. Radius corner design - to extend the life of fasteners. All sockets feature a radius corner design, causing the socket to grab the sturdy wall of the fastener instead of grabbing the corners, resulting in less wear on the fastener. CR-MO alloy steel for long life Fully guaranteed Heavy duty blow molded storage caseINCLUDES:10mm (310UM) 11mm (311UM) 12mm (312UM)13mm (313UM) 14mm (314UM) 15mm (315UM)16mm (316UM) 17mm (317UM) 18mm (318UM)19mm (319UM).WARNING: This product can expose you to Nickel (Metallic) a chemical known to the State of California to cause Cancer. The item "Sunex Tools 3657 10 Piece 3/8 Drive Metric Universal Imp Socket Set" is in sale since Friday, September 30, 2016. This item is in the category "eBay Motors\Automotive Tools & Supplies\Hand Tools\Other Automotive Hand Tools". The seller is "tooltopia" and is located in Shreveport, Louisiana. This item can be shipped to United States.