Features: This pack of 20 Solars Panel brackets features sturdy aluminum alloy construction for secure mounting of solar modules on various items. Designs with innovative Edges Clamps technology and pre drilling screw holes this brackets ensures enhances stability by increasing clamping between solars panel and mounting structures. Ideal for Campers owners, campers, and homeowners seek solar solution for motorhomes, balconies, rooftops power stations. Effortlessly installion solars panel on tilted roofs,or Balconies railings while maintaining weather resistant durability in outdoor environment. This multiple Solars Panel size and reinforced side pressure designs prevents slippage, ensuring long time use safety for residential and mobile energy setups. Specifications: Component: Aluminum alloy Size: 30mm, 35mm, 40mm, 45mm(Optional) Package Includes: 20pcs Solars Panel Brackets note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.