AixiZ accepts credit cards and paypal through the PayPal system. If you wish to pay by check or money order please contact us at (832) 549-5497 or xiayang@sbcglobal.net and we will invoice you for your purchase. SHIPPING COSTS: As follows (if you don't add it, we will invoice you for it!!) LASER MODULES (except 532nm 25-30mw) 1-5 units domestic $2.50 international $3.50 6-10 units domestic $3.00 international $4.00 11-35 units domestic $4.00 international $5.00 35-100 units domestic $7.95 international $14.95 100+ please email or call GREEN LASER MODULES 1-3 units domestic $5.50 international $11.50 4-6 units domestic $7.50 international $14.50 7-10 units domestic $9.50 international $17.50 11+ please email or call SPER POWER METERS $5.00 per unit domestic, $11.50 per unit international LASER SAFETY GLASSES $5.00 per unit for P3, $7.50 for F9 domestic or international RGB LED 1-3 units domestic $5.50 international $11.50 4-6 units domestic $7.50 international $14.50 7-10 units domestic $9.50 international $17.50 11+ please email or call LASER GOLF CLUB $20.00 per unit, domestic or international