Claims for damaged or missing items must be made in writing within 10 business days of your receipt of the order.  Returns must be received at the Institute in resalable condition within 90 days of our original shipping date.  A 25% restock fee will be charged for returned overstock items.  Please include a copy of the invoice or receipt with the return.  Returns or claims not meeting these criteria will not be honored.  Shipping and handling charges and return shipping costs are not refundable except in cases of Institute error.