Features:OOTDTY   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. Specifications: Material: Aluminum30 Size: Approx. 40x30mm/1.57x1.18inch35 Size: Approx. 40x35mm/1.57x1.38inchPackage Includes: 12 Pcs Solar Panel Mounting Bracket ClampNote: 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.