Check the listing for details. 11mm to 20mm Dovetail Extension Scope Mount Base Weaver Picatinny Rail Adapter. Condition: New. Listed at 10.99 USD. - We accept the payment through :Credit, debit, and gift cards, Apple Pay, Google Pay, PayPal, and PayPal Credit. - Payment must be fulfilled within 4 days after the end of auction. - Please make sure your ebay address is correct. Or not, please correct it before payment. - If you are a big customer, Please contact with us about the item's PRICE and SHIPPING. - Your feedback & suggestion is deeply appreciated, thanks. 1. Please make sure your address in ebay is correct. 2. We will only follow your address listed in the ebay orders for the shipment. 3. Import duties, taxes and charges are not included in the item price or shipping charges. 1. We can exchange the item within 30 days after you received it if it is defective.2. Returned item must have all original packaging and accessories.3. Seller are responsible for the returning shipping costs. 1. We greatly appreciate your POSITIVE feedback.2. Negative or Neutral feedback does not resolve any underlying issues that you may be experiencing as a buyer. 3. Any question or unsatisfaction please contact us with ebay message, we will sincerely solve for you. Our Working Time is (GMT+8): 8:30AM -- 6:00PM (Monday to Friday)Please allow us at least 24 hours to reply you when in the office, thanks! If You Want To Know More, Please Kindly Contact US, We Will Always Be Here To Help You. All rights reserved.