Features:solar adjustable end clamp. High strength aluminum alloy with anodizing surface, corrosion resistant and durable. Z style design, convenient to install, time and labor saving. Fits for most solar panel installation on the RV, house and boat. It fits 30-50mm/1.18-1.97inch solar framed panel. Package Includes:12 Pcs Solar Panel Mounting Bracket Clamp Specifications:Material: Aluminum30 Size: Approx. 40x30mm/1.57x1.18inch35 Size: Approx. 40x35mm/1.57x1.38inch note:Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. About Shipping: 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 us During 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 shopping Thanks for your cooperation and we'll make you feel satisfied.