SAFETY IS OUR PRIORITY: All our products are tested for safety and durability to meet or exceed all ASTM standards. MATERIAL: Weather and rust resistant galvanized steel enclosure frame construction. FEATURES: PartNo. 4135 SET OF 2 LOWER ENCLOSURE POLES. THESE ARE THE LOWER SECTION OF A TWO PIECE ENCLOSURE POLE. WARRANTY: Genuine Skywalker Trampoline component, Three year limited warranty MODEL COMPATIBILITY: This will ONLY fit STRC1400,SWJD15X.1,SWJDKS14B,SWTC1011,SWTC15X,SWTC16X,SWTC17X11,SWTCS011,SWTCS1400,SWTCS1500