Features:100 percent brand new and high qualityBy connecting the solar panel and fixing them on the track ensure that the modules are installed in the correct position and orientation.Corrosion resistance anodized surface treatment.Easy to install saving time and labor cost.Light weight and convenient transportation.A variety of sizes are available suitable comptiable with most frame modules on the market.Package Includes:10x Mid ClampsSpecifications:Material: Aluminum AlloyWeight: 700gSize: 40mm or 45mm or 50mm(optional)note:1.Please allow 1-2cm errors due to manual measurement make sure that you do not mind becomptiable withe you order.2.Due to the difference between different monitors the picture may not reflect the actual color of the item.About: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions please feel free to contact usDuring the shopping process if you have any questions please feel free to consult us we will reply you within 24 hours wish you a happy shoppingThanks comptiable with your cooperation and we'll make you feel satisfied.