Set of 4 galvanized wind stakes included * Galvanized steel frame with reinforced T-sockets stabilize the upper enclosure frame to the trampoline frame and prevents structural twisting * Enclosure net interlocks to the jumping mat by using a button-hole feature attaching the enclosure netting to the jumping surface at each V-ring * Enclosure netting made of high-quality polyethylene material for increased durability and UV protection * Extra wide UV protected spring pad is filled with 1 inch thick foam padding for comfort and durability