1、This ratchet screwdriver built-in labor-saving ratchet, and aluminum alloy non-slip handle 2、Chrome vanadium steel alloy socket / bit possess high hardness, rust and wear resistance 3、Made after general heat treatment, chrome-plated surface, beautiful, rust-proof and durable 4、Efficient, practical and portable with only one hand to operate, saving time and effort 5、Equipped with a storage box, convenient for you to store and carry, very practical Item Type: Ratchet Screwdriver Set Material: Aluminum alloy / chrome vanadium steel System: Metric Whether it is Magnetic: Yes Is it Insulated: Yes Scope of Application: Non-accuracy maintenance Purpose: Maintenance 1 x Ratchet Handle 1 x Connector 1 x Conversion Head 16 x Bit 9 x Socket 1 x Storage Box