【Product Features】 DURABILITY: Made of heat treated chrome vanadium steel (CR-V) with a protective black oxide finish, providing superior strength, anti-corrosion and rust resistance. UNIQUE DESIGN: Beveled drive ends help guide adapter or reducer smoothly onto drive tool. Four detent grooves ensure a secure connection with the drive tool. DETENT BALLS: Detent ball on each adapter end provides a secure fit into the socket, offering support when used with high torque impact rated drivers. Spring-loaded detent balls securely latch onto sockets, helping prevent them from being dropped. SIZES: This set includes a variety of adapters and reducers, adding versatility with the following conversions: (3/8 inch to 1/4 inch), (1/2 inch to 3/8 inch), (3/8 inch to 1/2 inch), (1/4 inch to 3/8 inch). 【Product Specifications】 Country of Origin: China Sizes: (3/8 inch to 1/4 inch), (1/2 inch to 3/8 inch), (3/8 inch to 1/2 inch), (1/4 inch to 3/8 inch) 【Package Included】 Socket Converter Adapter Reducer Set – 1 Set Note: ① Due to manual measurements and slight color variations, please allow 1-3 cm (0.4-1.18 inches) difference depending on display settings. ② Due to lighting and screen differences, the item's color may vary slightly from the images. Please understand.