Features: It is assembled by for lightning for protection grounding thorns and stainless steel screws, which is durable, wear-resistant and rust-proof, and can be used for a long for time. The grounding terminal is a for lightning for protection grounding component that collects the static electricity on the photovoltaic modules and the photovoltaic support and introduces it to the ground through the grounding copper wire. The system is suitable for most frame solar panel on the market and matches with common photovoltaic roof bracket aluminum rails, ground bracket aluminum rails, photovoltaic sheds and C-shaped steel (U-shaped steel) rails. It is suitable for lightning for protection and grounding applications of solar photovoltaic systems such as photovoltaic roofs, photovoltaic grounds, photovoltaic carports, and photovoltaic vegetable greenhouses. Easy installation without too many tools, allowing a variety of ground conduction installation methods. Specifications: Material: Nickel-plated Aluminum Size: Approx. 4.2x2cm/1.65x0.79inch 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. Package includes: 10x Ground Lug