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 or 1.18-1.97inch solar framed panel. Package Includes:12 Pcs Solar Panel Mounting Bracket Clamp Specifications:Material: Aluminum30 Size: Approx. 40x30mm or 1.57x1.18inch35 Size: Approx. 40x35mm or 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store