Features: Practical tools: These trampoline anchors have a practical design that ensures your trampoline won't move during stormy or windy conditions, spiral anchors are not only suitable for trampoline, but also for securing tents, basketball hoop, swing, slide, guard bars and more. Using suggestions: The trampoline anchors will work much better with a moderately soft ground. If you want to install them in hard ground, please water the ground, then install them next morning. Specifications: Material: Trampoline stakes: galvanized heat treated carbon steel Color: black, silver Size: Trampoline stakes: 12 x 1.2 inches/ 30 x 3 cm Belt straps: 15.7 inches long and 1.6 inches wide Package includes: 12 x Trampoline stakes 12 x Belt straps 1 x T handle wrench 1 x Power nut driver Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Pointed items are included, it is recommended to wear tool gloves to avoid injury when using and please keep it away from kids.