Introducing the most innovative, waterproof mounting systems ever developed for solar photovoltaic systems. 100% code-compliant, offering fast, simple installation and huge savings on shipping costs due to their compact, rail-less design. STURDY & VERSATILE: Our solar panel mounting kit is crafted from high-strength aluminum rails and comes in packs of 4. Compatible with panels sizes 20 watts up to 170 watts. The angle adjusts effortlessly allowing optimal sunlight according to the season. ECO-WORTHY offers multiple kinds of mounting brackets so no matter roof or ground, they can meet your expectations. Heavy duty 1/4" steel, welded in USA and coated with a tough industrial paint.