Features: 1. Heavy-duty Trampoline Anchor: Heavy-duty trampoline stakes, protect your trampoline from stormy and strong wind, and provide safety and stability for your trampoline. 2. Stronger Tensile Strength: Each of the adjustable safety strips is 25mm in width, and withstands tension up to 600kg. 3. Superior Material: Made of galvanized steel, anti-rusting and prolonging the life of anchors. Compared with straight nails, helical nails can withstand vertical tension. 4. Easy to Install: Come with heavy-duty metal buckles, easy assembly, and disassembly. Sturdy tip, make it easy to twist deep into the ground. 5. Wide Application: Suitable for many securing objects against the wind, e.g. Trampolines, camp tents, slides, trailers, outdoor furniture, fences, swing or boat, and many other things to be secured outdoor. Specification: Material: Alloy Steel + High Strength Polyester Color: Silver, Black Size: Ground Nails: 40cm, Tension Belt Width: 25mm Weight: 1700g Package Included: 4 x Ground Nails 4 x Tension Belt