Using Altro SampleWise is easy. Every sample shipped out of our North American distribution centers (Wilmington MA, Santa Fe Springs, CA and Mississauga, ON) is sent with prepaid shipping label and a Altro SampleWise instruction card. Simply use the prepaid UPS or Fedex return label that was included with your sample and drop it in the appropriate drop box or include it with your office’s outgoing shipments. We’ll take it from there.