Material:Alloy. Pckage Includes:9/12Pcs AFTER SALES SERVISE： In order to provide customers with a good shopping experience,we have done and will continue to do the following: 1:Products we sell are all in new condition and have passed rigid inspection. 2:If you have any questions,please feel free to contact us,we will reply you and resolve your problem within 24 hours. 3:Shipped by --All products are Shipped by with faster shipping speed,service is more secure. 4:Best After-sales Warranty--365-Day Money Back or Exchange Guarantee.