All-in-One 8-Piece Set: Ready to Install Out of the Box: Comes with 8 Z-type brackets, plus 16x 40mm cap bolts, 8x 19mm cap bolts, 16 flat washers, and 8x 13mm nuts. No extra purchases needed—perfect for installing solar panels, and ready to use right after unboxing. Weather-Resistant & Durable Aluminum Alloy: Crafted from high-quality aluminum alloy, it offers excellent corrosion resistance, UV protection, and tolerance to extreme temperatures and humidity. Lightweight yet heavy-duty, it maintains shape even with long-term outdoor use, making it suitable for harsh climates. Z-Type Design: Panel Protection + Ventilation: The Z-type structure fits perfectly with the solar panel’s stress points, while edge protection prevents scratches. Its bottom ventilation design enhances heat dissipation, extending the lifespan of both the panel and its battery. Pre-drilled holes speed up installation significantly. Versatile & Easy to Install: No professional tools required. Can be mounted on roofs or walls, compatible with 440W solar panels and most standard frames. Ideal for RVs, yachts, residential roofs, and other scenarios. Stable & Secure Support：The structure distributes weight evenly, resisting minor vibrations (e.g., from driving or sailing). It holds the solar panel firmly in place to prevent shifting, ensuring long-term stability., Manufacturer: Bowarepro