Improved read and write speed to transfer files quickly and securely between devices. Plug and play, durable. The playful and cute design creates a relaxing atmosphere. Shockproof, moisture-proof, lightning-proof and anti-magnetic. The best and most practical gift ideas for kids, especially suitable for middle school / high school and college students. Our U disk is not only interesting but also cool. Anti-impact, moisture-proof, light-resistant and anti-magnetic. Plug and play, durable. Note: It is important not to unplug the USB stick from the USB port during installation (writing). Otherwise, it may cause read errors. Note: Part of the capacity is reserved for the paging file, so the total storage capacity will not be displayed. < li> Package includes: 1 * U disk (4GB) 1. Manual measurement, there will be some errors in the size, please refer to the actual size 2. Due to the light and screen difference, the product’s color may be slightly different from the picture.