1、This product uses USB0 interface, compatible with the old version of USB1 interface, more convenient to use. 2、The shape of the U-disk is a small wooden hammer. It has a very unique shape, which makes your U-disk more personalized. 3、Perfect combination of traditional wooden craft and modern digital products. 4、Wooden enclosure can effectively cushion the impact of vibration on U disk, and data storage is safer. 5、Unique shape, so that you are not worried about U disk due to the loss of corners. Feature: This product uses USB 2.0 interface, compatible with the old version of USB 1.1 interface, more convenient to use. The shape of the U-disk is a small wooden hammer. It has a very unique shape, which makes your U-disk more personalized. Perfect combination of traditional wooden craft and modern digital products. Wooden enclosure can effectively cushion the impact of vibration on U disk, and data storage is safer. Unique shape, so that you are not worried about U disk due to the loss of corners. Specification: Capacity: 8GB; 16GB; 32GB; 64GB; 128GB(Optional) Interface: USB 2.0(Compatible USB 1.1) Shell material: Wood Shape: Hammer Weight: 32g / 1.1oz Product dimension: 9*6* 3.3cm / 3.5* 2.4* 1.3in Package list: 1 * USB Flash Drive Note: Because of the inconsistency of calculation units, the actual storage space size of U disk has slight difference, which is not a product quality problem. The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.