Kindly check the following details before you order. Material:metal, Plastic, Wood.Main Specifications: 1.storage capacity: 1GB, 2GB, 4GB(small,for promotional purpose mostly), 8GB,16GB,32GB,128GB(for sale). 2.Interface: USB 2.0/USB 3.03.Environment Temperature: -40°C - +70°C4.Storage Temperature: -50°C - +80°C5.USB Service Voltage: 4.5V-5.5V6.Storage Lifetime: More than 10 years7.Use A-class chip, can be erased repeatedly for 100,0000 times8.Operating System: Win98/ME/2000/XP/ Vista/win7 /win8, Mac OS 9.X/Linux2.4 or above9.In different shapes.Printing: Thermal transfer print, screen print, L
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