1、One set contains 10 pieces different sockets, which can meet different demands, enough for use. 2、High strength CR-V sockets can withstand more torque from impact tools. Black oxide finish offers maximum protection from rust and corrosion, ensure long service time. 3、Concave 6-point hex socket grips the fasteners stably, prevents falling off under high torque and hammering stress when used with impact wrenches against fasteners. 4、Each 1/2 inch deep impact socket is engraved with size mark, which allows quick identification of drive socket specs and measurements. 5、A solid plastic storage box stores all the impact sockets, neat and organized, which is convenient for storing and transporting. Features: One set contains 10 pieces different sockets, which can meet different demands, enough for use. High strength CR-V sockets can withstand more from impact tools. Black oxide finish offers maximum from rust and corrosion, ensure long service time. Concave 6-point hex socket grips the fasteners stably, prevents falling off under high and hammering stress when used with impact wrenches against fasteners. Each 1/2 inch deep impact socket is engraved with size mark, which allows quick identification of drive socket specs and measurements. A solid plastic storage box stores all the impact sockets, neat and organized, which is convenient for storing and transporting. Specification: Color: Black Material: CR-V Socket Length: 78mm Square Socket Size: 1/2in (12.5mm) Hex Socket Size (Metric): 8mm, 10mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm Note: Impact sockets only, others in pictures are not included. Due to manual measurement, there may be deviation. Due to lights or others, it may slightly differ from pictures. Packing List: 10 * Impact Socket 1 * Storage Box 10 * Impact Socket 1 * Storage Box