All of our compatible ribbons are warranted to be free from manufacturing defects. All of our products are subjected to rigorous testing procedures to ensure the highest quality products at all times. Our products are manufactured by using only the highest quality materials. SEAMLESS COMPATIBLE BLACK RIBBONS FOR OKI 520 / 590, BOX OF 6 $13.20 UNIVERSAL SEAMLESS COMPATIBLE BLACK RIBBONS FOR OKI 182 / 320 / 390, BOX OF 6 $11.82 COMPATIBLE BLACK RIBBON FOR OKI 393 $8.50 SEAMLESS COMPATIBLE BLACK RIBBONS FOR OKI 420 / 490 / 720, BOX OF 6 $15.96 1/2" BLACK COMPATIBLE RIBBON FOR OKIDATA 4410 PACEMARK, BOX OF 3 $65.40 Quick search by model or item. Select DHL Ground for $7.95 shipping charge on orders under $50 and free DHL Ground shipping charge on orders over $50.* Regular rates for UPS Ground, DHL Next Day & DHL 2nd Day. *See Shipping Info for restrictions. EnvisionNet, 5161 Beach Blvd., Suite 1, Jacksonville, FL 32207 **NOTICE** For verification and security purposes orders placed with a ship to address other than the Credit Card billing address may take an additional 3-5 business days to ship. For fast service please try to have all orders shipped to the credit card's billing address.