The rotation between the frames allows the solar panel to tilt. Everything is attached to the brackets, the solar panel, actuator, rotation pin, and whatever else the kit. HIGH QUALITY: The solar panel mounting bracket is made of non-rusting aluminum alloy, lightweight and strong, with anodized surface treatment, it can resist various weather elements, durable for long-term outdoor use. 99 after $25 OFF your total qualifying purchase upon opening a new card. AI-generated from the text of manufacturer documentation. Then the legs can be propped out, extended, adjusted, and stored easily and quickly.