1. Sizes: length 2.4cm * width 1.3cm * thickness 0.6cm. Weight: 4g. 2. Type-C plug to Micro-USB jack, suitable for converting a Micro-USB plug data cable (or other product with a Micro-USB plug) into a Type-C plug. 3. Zinc alloy shell material. 4. For charging and data transfer at the same time, portable, convenient and practical, with elastic lanyard.