Adjustable solar panel mounting brackets designed for off-grid solar systems. Quick assembly with stainless steel fasteners and precise hole placement. Great addition for use on top of an RV or other flat surface. Compatible with Renogy Solar Panels under 100W. Package Includes: Four (4) Fixed L-Brackets, Two (2) Tilt L-Brackets, Six (6) M8 Plastic Knob Screws, Six (6) M8 Wing Nuts, Four (4) M6 x 16mm Hex Cap Bolts, Four (4) M6 Split Lock Washers, Eight (8) M6 Flat Washers, Four (4) M6 Hexagonal Nuts, Six (6) M8 Washers, Six (6) M8 Spring Washers, Six (6) #10 x 1¼ in Self-Drilling Cap Screws, Six (6) Plastic Retaining Rings 1-year material and workmanship commitment., Weight: 3.5 pounds, Manufacturer: Renogy