Model No.: Functional-002 Material: Metal Capacities Available: 4GB,8GB,16GB,32GB,64GB,128GB Shapes Available: Silver Imprint Options: Silkscreen or Laser Engrave Data Service Options: Pre-load, Auto-run, Undeletable Packaging Options: Retail, Bulk Accessory Options: Nil Minimum Order Quantity: 100pcs Physical Size: 130mm x 15mm Operating System: Windows/Mac