The phone adapter is plug-and-play, very convenient, and it is very small and easy to carry. OTG adapter has fast speed data transmission, allowing you to transfer file between U disk and phone quickly to back up and save your beautiful photos. It is constructed of aluminum alloy material. The length of this product is 3.1cm and width is 1.4cm, the height is 0.7cm. The adapter head is very suitable for smartphone, tablet, computer. Item Name: Adapter Head Material: Aluminum Alloy Features: Plug And Play, Convenient, Creative, Durable Size Details: Size: 3.1cm x 1.4cm x 0.7cm/1.22" x 0.55" x 0.28" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Adapter Head