About this item 1. This adapter can help you connect a 6.35mm (1/4 inch) plug (male) to a 3.5mm (1/8 inch) jack (female) stereo. 2. It features a new design that better matches your device. 3. Made of pure copper, this product has a much longer service life compared to plastic and gold plating. 4. The pure copper connectors resist corrosion and ensure minimal signal loss. Dimensions: 2.5 x 3 x 0.3 inches.