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, Laser imprint, Engraving.Packaging:Packed into standard export cartons.1pc/opp bag; 500pcs/ctn.MOQ: 300copies each design, but 1000copies are the most economic quantity.Timing:Estimated 5days for sample, and 10days for bulk production.3 hours forward to Shanghai Seaport Store(by sea or air).3 days finish Chinese customs and placed into ship by sea, and 1 day by air.Timing from Shanghai/Hangzhou to the destination ports for your consideration:Port:By Sea:By Air:Port:By Sea:By Air:Sydney12~14days3daysVancouver15days3daysMelbourne18days3daysLondon30days3daysAuckland18days3daysFelixstowe25~31days3daysWellington28days3daysBerlin27~31days3daysLos Angeles15days3daysHamburg28~34days3daysLong Beach11~16days3daysDublin38days3daysMiami30days3daysAntwerp30~38days3daysWashington35~40days3daysRotterdam29~34days3daysNew York23days3daysSouthampton28~35days3days