Minimum shipping and handling charge is $4.50. For continental U.S. destinations including APOs and FPOs, please add 15% for orders totaling $100.00 or less; add 10% for orders in excess of $100.00. Overseas shipments subject to actual U.S.P.O. rates. Overpayment of $1.00 or more for shipping charges will be refunded. Any returned or canceled order will incur an additional 25% of total billing charge minus shipping.

Net 30 days to schools and other authorized institutions. Remittance must accompany orders from individuals.

Returns will not be accepted without prior authorization from us. A restocking fee of 25% will apply. When requesting authorization to make returns please include billing invoice number. Materials being returned must be in saleable condition and should be insured since you are responsible for all materials invoiced.