Check the listing for details. 1 Matched Pair LINLAI 300B-T/300B-L/300B-Z Carbon Sprayed T-Series Vacuum Tube. Condition: New. Listed at 224.66 USD. LINLAI T-Series Vacuum Tubes 2pcs 300B-T(Carbon Sprayed)/300B-L/300B-Z(Carbon Sprayed) Selectable(get what you selected) Factory Matched and Tested, Gift Box-Official Launch, 18 Months Warranty We can offer Matched Quad if you buy 2 Pairs, Please contact me if you need Matched Quad Payment: PayPal Only Shipping: Free Registered Airmail ship to Worldwide, Online Tracking. Delivery usually takes 7-15 business days (excluding holiday and weekend). Mexico, Brazil...etc. customers please be patient, item maybe require over 25 business days to reach you due to lengthy customs clearance. Warranty & Returns: We offer 12 months quality warranty since the purchasing date. Returns will only be accepted for defective item / unmatch description. Please notify us within 7 days of receipt. Buyers are responsible for the return shipping cost. Shipping, Handling and Insurance costs are not refundable. Replacement will be sent upon receiving the return item. If the item is not available, a refund will be issued. About Us: Our goal is to provide High-quality items with most reasonable price, Buy it Now with confidence. Please feel free to contact us if you have any problems via eBay message, we strive to answer all questions and resolve any problems as quick as possible. We accept customized listing orders, please contact us. Other Terms: We sincerely hope to have your Positive feedbacks with DSRs of 5. Please contact us if anything happens to the item that you are unsatisfied, we will do what we can do to fix any issues till you satisfied. Be sure to add me to your Favorites List !