Good thinking - maligned: Stable ground anchor which defies even stronger storm - but the material for fixing the trampoline at anchor is solid scrap! The threading of the bands in the plastic hooks not actually work and if you do see the bands fixed, the plastic parts fall apart at the first light exposure to dust!
When the storm then but is coming? Taken attaching wire, tied trampoline at ground anchor - holds! Mc Gyver would have been proud. When the anchor they are anywhere else buys individually by the way usually more expensive than here in the set ...