All it takes is a Vuly 360 Pro Swing Set Upsize Kit and an extra swing to turn your small into a medium or your medium into a large. The 360 Pro from Vuly is a modular outdoor play set like no other. You can customize your experience with an upsize kit by adding a yoga swing or nest swing to the frame. The 360 Pro frameset features a premium rust defense with heat treated, double-galvanized steel and is certified for up to 330 pounds total. Made to be sturdier and stronger than any other swing set, 360 Pro’s solid A-frame uses 2x thicker and 40% wider parts, as well as the signature Vuly black, matte powder-coating.