SkyBound Heavy Duty Trampoline Anchor Kit - Set of 4 Set of 4 heavy duty, Black cork-screw steel stakes The steel cork-screw anchors twist deep into the ground for the highest level of trampoline stability Sky bound's trampoline anchor kits help protect your trampoline during stormy/windy conditions, safely securing the trampoline to the ground Black coating helps prolong the life of the anchors by reducing the chance of rust and early deterioration Tough Nylon straps easily connect to the steel buckles for fast assembly and disassembly