... ? oh .well .pls click here .there are many kinds of usb .including the plastic ,swivel ,leather ,bracelet ,metal ,super mini ... write protect switch5. Material: Plastic ,Push-Pull6. Power supplier: USB BUS7. Weight: 4g8. Dimension: 30x12x3.6mm9.Capacity:128MB,256MB,512MB ... 256MB,512MB,1GB,2GB,4GB,8GB,16G...Material: PlasticInterface Type: USB 2.0Encryption: NoPlace of Origin: Beijing China (Mainland)Read ...