Check the listing for details. #273 1PC CNC Internal Diameter 10mm Aluminum Exhaust Pipe Clamp RC Boat. Color: Silver, Condition: New. Listed at 6.99 USD. Description: This high quality exhaust pipe clamp is for gas or nitro exhaust pipes for rc boat. Install exhaust pipe use size: inside diameter = 10 mmmaterial : aluminumquantity:1pc Payment Policy : We only accept payments via PayPal. Shipping Time & Method: Item will be shipped within 3 days after payment is confirmed. Goods will be sent via airmail . Delivery takes about 18-25 business day (without holidays). All products have been checked and packaged in good condition before dispatch. Please make sure your address in PayPal is matched with your shipping address before pay. If you would like to change the address, please contact us IMMEDIATELY after your payment. Return policy :After receiving item.,items can be returned within 30 days . Items must be the original packaging. No use. No damage. Buyers bear the freight cost.