Premium Quality - Our ground anchor kit are made with 12mm(On the market are 9mm) diameter high quality steel , full welded wider spirals, compared with the spot welding on the market, our blades are more solid, upgraded spiral blades like a screw penetrates wood, hold strongly no matter hard soil or sandy island, can save half of the efficiency and more stability Long Ground Anchors - Our earth anchor measures approx. 67 cm/ 28 inches in length, allows ground anchors to be inserted deeper into the ground, approx. 3 inches wide helix for maximum holding power, you can use this ground auger kit to bind anything and fix it in place even in high wind weather Anti-rust Coating - Trampoline anchors with chorome plate coating(On the market are black paint), never worry about the paint falling off, will perform better in terms of corrosion and rust protection Wide Applications - Swing set anchors augers for tying down and securing anything vulnerable to wind. Strong enough to hold down framed structures such as sheds, carports, gazebos, travel trailers, cabins, chicken coops, garages, and small buildings. Works great with trampolines, playground playsets, kid's swing sets, slides, deer stands, canopies, temporary shelters, campers, fencing and fence posts, trees, vertical hammock stands, and more Convenient and Reusable - These trampoline stakes are not easily deformed, installation/removal in 20 seconds with electric drill and can be reused for a long time, with a bag pack for easy to carry.