This bracket system is built to withstand the harshest outdoor elements without rusting. Contains two Premium top arms and two bottom spring arms to hang two banners. Constructed of long-lasting stainless steel and aluminum with fiberglass poles. The spring arm has a 1 degree incline to keep banners taut and easily snaps back into place after graphic changes. Attaches to round wood and steel poles. Banner sold separately. One-year warranty. Complies with Prop 65.