Helinox Protective Ground Sheet Accessory for Camp ChairsGround sheet camping chair accessory for leveling the load and preventing sinking into soft or uneven ground Compatible with the Helinox Chair One Original; increases comfort and stability in rugged conditions, especially sand and muddy ground Easy to attach, a center strap secures the sheet to the chair frame, while chair feet slide into corner pockets Increases comfort and stability in rugged conditions, especially sand and muddy ground Chair One