16 ft. Trampoline is equipt with 12 high safety enclosure poles and heavy gauge galvanized rust resistance steel construction. 6 W-shaped legs secure stability. 12 foam padded poles to support UV-proof safety trampoline enclosure net for maximum safety while jumping. Heavy duty 3-step galvanized steel ladder offers convenient maneuverability in and out of the trampoline. Our trampolines comply with ASTM F381-16 and ASTM F2225-15 Standard Safety Specification for Components, Assembly, Use, and Labeling of Trampolines. You can rest assured that our safety materials are among the best on the market for your family.100% Satisfaction Service-One order gets all accessories. The specific assembly steps are shown in picture form which is easy for you to understand. This trampoline comes in 2 large boxes, if the box arrives damaged or parts missing, contact us and we will reply in time. Unique 6 balance bar plus 6-Watt-shaped legs provide double stability. In addition to the 6-Watt shaped legs to evenly support the frame of the trampoline, our upgraded 16 ft. trampoline is also specially designed with 6 balance bars to connect every legs, which provide a more even force to make trampoline more stable and prevent trampoline poles from bending or even breaking. Double stability, double security.