The U disk is made of wood and can be rotated, very convenient, not easy to lose. Easy to use and wide compatibility, plug and work, no need to install any software. USB flash drives is a useful device for any client from students to corporate professionals. This price is 4GB, we have 1GB, 2GB, 8GB, 16GB, 32GB, 64GB, 128GB. Custom logo could be imprinted. Great for promotional gifts and giveaways.