• Patented (Fenox) galvanized steel anchors used specifically for stony ground
• This anchor will go where the typical helix type anchor will not
• The anchor is driven into the ground by a hammer and then a mandrel (sold separately) is driven down into the center of the anchor pushing the 'steel roots' into the stony ground locking it in place and ensuring a secure ancho.
• The Anchor Tool Set is REQUIRED for installation. SKU: ANCFNX6TOOLSET
• The anchors are 600mm long approximately 23 1/2 inches
• Each anchor weighs about 1.6 pounds and is made of hot dipped galvanized steel.
• Includes hook (bracket) as shown
• You can purchase extra brackets here 

To see a graphical demonstration on how the anchor is installed and works, .