USA and ALL International bidders pay $2.00 for for 1st class airmail postage at BUYER's RISK. Registered mail is $9.90. Priority mail is available for $4.85 and global priority mail is $7.00 (where available). Only one shipping charge per shipment no matter how many auctions you win.
Sellers have the right to set their own prices independently, but some manufacturers place restrictions on how these prices will be displayed or communicated to others.