Size is approx; 11.1 by 6.3 by 2.3cmAdditional product info; This is a communication and charging cable compatible with USB Type-C.Note: The image is for illustrative purposes only. Smartphone, etc. are not included.- This product is a communication and charging cable compatible with USB Type-C. It cannot be used with other types of charging connectors.- Rating: Do not use with a voltage or current exceeding 20V 3A. There is a risk of overheating and fire.- This product does not guarantee charging with all mobile chargers, USB AC adapters, or computers.- Do not disassemble, modify, or repair this product.- Avoid using outdoors. Do not expose this product to water or operate it with wet hands. Do not leave it in high-temperature or high-humidity environments for extended periods.- When extending and storing the cable, hold both connectors and operate slowly. Letting go of one connector during operation may cause the reel part to hit your hands or fingers forcefully.