Yuclam 15 Pieces Drive Tool Accessory Set Includes Socket Adapters 1/4'' 3/8'' 1/2'' Extensions and Universal Joints Drive Impact Extension Bar and Adapter Set Professional Socket Accessories Features: Set includes: 2pcs 1/4" extensions (3in, 6in); 3pcs 3/8" extensions (3in, 6in 10in); 3pcs 1/2" extensions (3in, 5in, 10in); 4pcs impact socket adapters and 3pcs impact universal joints. Made from premium chrome-vanadium steel, providing high durability for hard and long-term use. Spring loaded detent ball on adapter ends provide secure fit into sockets. Knurled handle allows easy comfortable hand non-slip turning loosened fasteners. Great for working in hard-to-reach areas, suitable for auto shops, garages and project. Specifications: Material: Chrome Vanadium Steel Color: Silver Size: 1/4": 7.5cm (3in), 15cm (6in) 3/8": 7.5cm (3in), 15cm (6in), 25cm (10in) 1/2": 7.5cm (3in), 12.5cm (5in), 25cm (10in) Item Weight: 1616g / 3.6lb Package Size: 32.0 * 9.0 * 3.2cm / 12.6 * 3.5 * 1.3in Package Weight: 1671g / 3.7lb Package List: 2 * 1/4" Extension Bar (3",6") 3 * 3/8" Extension Bar (3", 6", 10") 3 * 1/2" Extension Bar (3", 5", 10") 4 * Impact Socket Adapter (1/4"F*3/8"M, 3/8"F*1/4"M, 3/8"F*1/2"M, 1/2"F*3/8"M) 3 * Impact Universal Joint (1/4"Dr, 3/8"Dr, 1/2"Dr)