Terms of Sale: All items are guaranteed as described and may be returned within 5 days of receipt only if packed, shipped, and insured as received. Payment in US dollars drawn on a US bank, including state and local taxes as applicable, is expected upon receipt unless otherwise agreed. Institutions may receive deferred billing and duplicates will be considered for credit. References or advance payment may be requested of anyone ordering for the first time. Postage is extra and will be via UPS. PayPal, Visa, MasterCard, and American Express are gladly accepted. Please also note that under standard terms of business, title does not pass to the purchaser until the purchase price has been paid in full. ILAB dealers only may deduct their reciprocal discount, provided the account is paid in full within 30 days; thereafter the price is net.